Hyundai H-PDP4201 Service Manual page 13

Microprocessor Interface Pin Descriptions
194 WR
195 RD
196 ROMOE
197 ROMWE
198 CS0
199 CS1
193 NMI
164，173～ A1～A19
184，187～
192
148～163 D0～D15
Peripheral Interface Pin Descriptions
207 PORTA0
206 PORTA1
205 PORTA2
204 PORTA3
203 PORTA4
201 PORTA6
203 PORTA4
57、 58、 60～ PORTB0
64
PORTB7
39 PORTC0
40 PORTC1
41 PORTC2
42 PORTC3
43 PORTC4
44 PORTC5
45、46 PORTC6
PORTC7
67 RXD
68 TXD
Miscellaneous Pin Descriptions
142 TEST
139 RESET
169 XI
170 XO
Power and Ground Pin Descriptions
16，37，65，84，137，185
17，38，66，85，138，186
29，52，72，86，104，123，
140，171，208
1，30，53，73，87，105，124，
141，172
165
166
167
168
Write Enable low indicates a write to external RAM or other
devices
Read Enable low indicates a read to external RAM or other
devices
ROM Output Enable low output indi cates a read from
external ROM.
ROM Write Enable low indicates a write to external ROM.
Chip select signal
Chip select signal
Non-maskable Interrupt
Microprocessor address bus output bits
Microprocessor 16-bit bidirectional data bus
DISPEN signal output(PDP display control)
READY signal input（PDP display ready）
SDA
SCL
IR receive signal input
DVI digital interface select control
IR receive signal input
～
Key control input
MA-EN enable control
480ISEL 480I anti-copy control
RST-1235 PW1235 reset
DIGSEL DVI digital interface select
LVDSON LVDS enable control
S0 sound system control
、
LED control
Serial Receive Data
Serial Transmit Data
Test mode enable
Bidirectional reset pin
Crystal input
Crystal output
VDD1 1.8V digital core power.
VSS Digital core ground
VDDQ3 3.3V digital I/O power.
VSSQ Digital I/O ground.
VDDPA2 1.8V analog clock generator power.
VSSPA2 Clock generator analog ground.
VDDPA1 1.8V analog clock generator power.
VSSPA1 Clock generator analog ground.
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