Sharp LC-37GA5E (serv.man17) Service Manual ▷ View online
89
LC-26GA5E
LC-32GA5E
LC-32GA5E
LC-37GA5E
Table 2-4
provides detailed Display/Odd Port pin descriptions.
Table 2-3 Port D Pin Descriptions
Name
Pin(s)
Type
Function
VCLK
72
I/O D5
DVPort Pixel Clock. The VCLK pin is used for DV port image capture.
The polarity can be selected by the VCLKPOL bit.
The polarity can be selected by the VCLKPOL bit.
VPEN
55
I/O D5
DVPort Pixel Enable. Used when external flow control capture mode is
enabled by the EXTFCE bit. When VPEN is active, the input data is valid.
The polarity can be selected by the PENPOL bit. Use of this pin allows
non-contiguous input data.
enabled by the EXTFCE bit. When VPEN is active, the input data is valid.
The polarity can be selected by the PENPOL bit. Use of this pin allows
non-contiguous input data.
PORTD0
63
I/O D5
PORTD(7:0) can be used as GPO (Output Only).
PORTD1
62
I/O D5
PORTD2
61
I/O D5
PORTD3
60
I/O D5
PORTD4
59
I/O D5
PORTD5
58
I/O D5
PORTD6
57
I/O D5
PORTD7
56
I/O D5
Table 2-4 Display/Odd Port Pin Descriptions
Name
Pin(s)
Type
Function
DOR0
131
I/O SR5
DOPort Red Pixel Data. In dual pixel output mode these pins are the ODD
red outputs. In single pixel output mode these pins are not used.
red outputs. In single pixel output mode these pins are not used.
DOR1
130
I/O SR5
DOR2
129
I/O SR5
DOR3
128
I/O SR5
DOR4
127
I/O SR5
DOR5
126
I/O SR5
DOR6
125
I/O SR5
DOR7
124
I/O SR5
3.3. Description of Pins IC2201, continued
CONFIDENTIAL
90
LC-26GA5E
LC-32GA5E
LC-32GA5E
LC-37GA5E
Table 2-5
provides detailed Microprocessor Interface pin descriptions.
DOG0
121
I/O SR5
DOPort Green Pixel Data. In dual pixel output mode these pins are the
ODD green outputs. In single pixel output mode these pins are not used.
ODD green outputs. In single pixel output mode these pins are not used.
DOG1
120
I/O SR5
DOG2
119
I/O SR5
DOG3
118
I/O SR5
DOG4
117
I/O SR5
DOG5
116
I/O SR5
DOG6
115
I/O SR5
DOG7
114
I/O SR5
DOB0
113
I/O SR5
DOPort Blue Pixel Data. In dual pixel output mode these pins are the ODD
blue outputs. In single pixel output mode these pins are not used.
blue outputs. In single pixel output mode these pins are not used.
DOB1
112
I/O SR5
DOB2
111
I/O SR5
DOB3
110
I/O SR5
DOB4
109
I/O SR5
DOB5
108
I/O SR5
DOB6
100
I/O SR5
DOB7
99
I/O SR5
Table 2-5 Microprocessor Interface Pin Descriptions
Name
Pin(s)
Type
Function
WR
195
I/O D5
Write Enable. Low indicates a write to external RAM or other devices.
RD
196
I/O D5
Read Enable. Low indicates a read to external RAM or other devices.
ROMOE
197
OS
ROM Output Enable. Low output indicates a read from external ROM.
ROMWE
198
OS
ROM Write Enable. Low indicates a write to external ROM.
CS0
199
I/O D5
Miscellaneous Chip Select 0. Low selects external devices.
CS1
200
I/O D5
Miscellaneous Chip Select 1. When EXTRAMEN=0, low selects external
devices.
Chip select for external RAM. When EXTRAMEN=1, low selects external
RAM. (RAMCS)
devices.
Chip select for external RAM. When EXTRAMEN=1, low selects external
RAM. (RAMCS)
NMI
194
ID 5
Non-Maskable Interrupt. A high input triggers a non-maskable interrupt to
the on-chip microprocessor.
the on-chip microprocessor.
Table 2-4 Display/Odd Port Pin Descriptions (continued)
Name
Pin(s)
Type
Function
3.3. Description of Pins IC2201, continued
CONFIDENTIAL
91
LC-26GA5E
LC-32GA5E
LC-32GA5E
LC-37GA5E
A1
193
I/O D5
Microprocessor address bus output bits (19:1).
A2
192
I/O D5
A3
191
I/O D5
A4
190
I/O D5
A5
189
I/O D5
A6
188
I/O D5
A7
183
I/O D5
A8
182
I/O D5
A9
181
I/O D5
A10
180
I/O D5
A11
179
I/O D5
A12
178
I/O D5
A13
177
I/O D5
A14
176
I/O D5
A15
175
I/O D5
A16
164
I/O D5
A17
163
I/O D5
A18
162
I/O D5
A19
161
I/O D5
D0
160
I/O D5
Microprocessor 16-bit bidirectional data bus.
D1
159
I/O D5
D2
158
I/O D5
D3
157
I/O D5
D4
156
I/O D5
D5
155
I/O D5
D6
154
I/O D5
D7
153
I/O D5
D8
152
I/O D5
D9
151
I/O D5
D10
150
I/O D5
D11
149
I/O D5
D12
148
I/O D5
D13
145
I/O D5
D14
144
I/O D5
D15
143
I/O D5
Table 2-5 Microprocessor Interface Pin Descriptions (continued)
Name
Pin(s)
Type
Function
3.3. Description of Pins IC2201, continued
CONFIDENTIAL
92
LC-26GA5E
LC-32GA5E
LC-32GA5E
LC-37GA5E
Table 2-6
provides detailed Peripheral Interface pin descriptions.
Table 2-7
provides detailed Miscellaneous pin descriptions.
Table 2-6 Peripheral Interface Pin Descriptions
Name
Pin(s)
Type
Function
PORTA0
208
I/O U5
General-purpose I/O port bit controlled by PADAT0 and PAEN0. This pin
has one other possible function when EXTRAMEN=1.
When EXTRAMEN=1 and PAEN0=0, PORTA1 is microprocessor address
bit 0 (A0).
has one other possible function when EXTRAMEN=1.
When EXTRAMEN=1 and PAEN0=0, PORTA1 is microprocessor address
bit 0 (A0).
PORTA1
207
I/O U5
General-purpose I/O port bit controlled by PADAT1 and PAEN1. This pin
has one other possible function when EXTRAMEN=1.
When EXTRAMEN=1 and PAEN1=0, PORTA1 is microprocessor byte-high
enable (BHEN)
has one other possible function when EXTRAMEN=1.
When EXTRAMEN=1 and PAEN1=0, PORTA1 is microprocessor byte-high
enable (BHEN)
PORTA2
206
I/O U5
General-purpose I/O port bit controlled by PADAT2 and PAEN2.
PORTA3
205
I/O U5
General-purpose I/O port bit controlled by PADAT3 and PAEN3. This pin
can also function as an external clock source for DCLK (DCLKEXT) when
both the internal PLLs are disabled or when DPLLBYP=1.
can also function as an external clock source for DCLK (DCLKEXT) when
both the internal PLLs are disabled or when DPLLBYP=1.
PORTA4
204
I/O U5
General-purpose I/O port bit controlled by PADAT4 and PAEN4. This pin
has one other possible function when IREN=1.
When IREN=1 and PAEN4=1, this pin can function as an input to the on-
chip IR receiver 0. (IRRCVR0)
has one other possible function when IREN=1.
When IREN=1 and PAEN4=1, this pin can function as an input to the on-
chip IR receiver 0. (IRRCVR0)
PORTA5
203
I/O U5
General-purpose I/O port bit controlled by PADAT5 and PAEN5. This pin
has other possible functions depending on the IREN, EIEN registers. When
EIEN=1 and PAEN5=1, this pin can function as an external interrupt to the
on-chip CPU. When IREN=1 and PAEN5=1, this pin can function as an
input to the on-chip IR receiver 1 (IRRCVR1). When DPLLBYP=1 and
PAEN=0, this pin becomes the output of the DCLK PLL. This output can be
routed through an external spread spectrum chip and then back into port
A3 (DCLK input) to implement spread spectrum.
has other possible functions depending on the IREN, EIEN registers. When
EIEN=1 and PAEN5=1, this pin can function as an external interrupt to the
on-chip CPU. When IREN=1 and PAEN5=1, this pin can function as an
input to the on-chip IR receiver 1 (IRRCVR1). When DPLLBYP=1 and
PAEN=0, this pin becomes the output of the DCLK PLL. This output can be
routed through an external spread spectrum chip and then back into port
A3 (DCLK input) to implement spread spectrum.
PORTA6
202
I/O U5
General-purpose I/O port bit controlled by PADAT6 and PAEN6. This pin
has one other possible function when PREF1EN=1.
When PREF1EN=1 and PAEN6=0, PORTA6 is a variable duty-cycle pulse
reference generator (PWM) output controlled by PREF1HI and PREF1LO.
has one other possible function when PREF1EN=1.
When PREF1EN=1 and PAEN6=0, PORTA6 is a variable duty-cycle pulse
reference generator (PWM) output controlled by PREF1HI and PREF1LO.
PORTA7
201
I/O D5
General-purpose I/O port bit controlled by PADAT7 and PAEN7. This pin
has one other possible function when PREF0EN=1.
When PREF0EN=1 and PAEN7=0, PORTA7 is a variable duty-cycle pulse
reference generator (PWM) output controlled by PREF0HI and PREF0LO.
has one other possible function when PREF0EN=1.
When PREF0EN=1 and PAEN7=0, PORTA7 is a variable duty-cycle pulse
reference generator (PWM) output controlled by PREF0HI and PREF0LO.
RXD
53
I/O U5
Serial Receive Data. RXD is the serial receive data for the on-chip serial
port. This pin can also function as the 2-wire master data pin when
2WMEN=16.
port. This pin can also function as the 2-wire master data pin when
2WMEN=16.
TXD
54
I/O U5
Serial Transmit Data. TXD is the serial transmit data for the on-chip serial
port. This pin can also function as the 2-wire master clock output pin when
2WMEN=16.
port. This pin can also function as the 2-wire master clock output pin when
2WMEN=16.
Table 2-7 Miscellaneous Pin Descriptions
Name
Pin(s)
Type
Function
TESTEN
137
ID 5
Test Mode Enable. Connect to ground for normal operation.
RESET_N
132
BOD
Reset Output. RESET_N is a bidirectional pin that can be used to either
drive external logic in the system or receive an external reset signal.
drive external logic in the system or receive an external reset signal.
XI
169
I
Crystal Input. Connect to external crystal. XI can also function as the MCLK
input LVTTL-level signal from an external oscillator.
input LVTTL-level signal from an external oscillator.
XO
170
O
Crystal Output. Connect to external crystal.
3.3. Description of Pins IC2201, continued
CONFIDENTIAL
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