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Control Port Functions
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I/O Port Table of Main CPU (IC301, PW168A)
178
Port A7
LAMP_PWM
PWM Output to Lamp_CPU
PWM
O
115
Port A6
NMI_PW
I
44
Port A5
M_SCLK1
I/O
116
Port A4
M_SDA1
O
45
Port A3
M_SCLK
I/O
46
Port A2
M_SDA
O
117
Port A1
SCLK_PW
3 Line Serial Bus Clock
O
180
Port A0
SDATA_PW
3 Line Serial Bus Data
O
173
Port B7
IRM_RS
IC401 RESET
O
111
Port B6
IRM_ST
3 Line Serial Bus Strobe
O
40
Port B5
3L_EN
3 Line Serial Bus Enable
O
174
Port B4
POWER_FAIL
I
41
Port B3
A23
Address Bus 23
O
175
Port B2
A22
Address Bus 22
O
112
Port B1
A21
Address Bus 21
O
229
Port B0
A20
Address Bus 20
O
71
Port E7
OPTION_SW0
EM_Select
SET = L
I
139
Port E6
DCLK_SW
Standby = L
O
200
Port E5
HOT_PLUG
Not used
O
140
Port E4
DDC_DAT2
O
201
Port E3
DDC_CLK2
O
141
Port E2
DDC_DAT1
O
72
Port E1
AV720P50_SW
720p50 = L
O
142
Port E0
VHDPEN
Video Data Enable
Reset = L
O
119
Port F7
IRRCVR1
IR Receiver Input 1
Not used
I
182
Port F6
IRRCVR0
IR Receiver Input 0
I
47
Port F5
RXD
I
181
Port F4
TXD
O
189
Port F3
CS0
I/O Expander Chip Select (Output)
O
55
Port F2
CS1
I/O Expander Chip Select (Input)
O
207
Port F1
DCLKEXT
D-port Clock External Input
Not used
I
257
Port F0
MCLKEXT
Memory System Clock Input
Not used
I
194
A19
A19
Address Bus 19
63
A19
A18
Address Bus 18
132
A17
A17
Address Bus 17
62
A16
A16
Address Bus 16
61
A15
A15
Address Bus 15
131
A14
A14
Address Bus 14
193
A13
A13
Address Bus 13
247
A12
A12
Address Bus 12
60
A11
A11
Address Bus 11
246
A10
A10
Address Bus 10
59
A9
A9
Address Bus 9
130
A8
A8
Address Bus 8
129
A7
A7
Address Bus 7
192
A6
A6
Address Bus 6
128
A5
A5
Address Bus 5
58
A4
A4
Address Bus 4
191
A3
A3
Address Bus 3
190
A2
A2
Address Bus 2
245
A1
A1
Address Bus 1
244
A0
A0
Address Bus 0
242
D15
D15
Data Bus 15
I/O
241
D14
D14
Data Bus 14
I/O
187
D13
D13
Data Bus 13
I/O
53
D12
D12
Data Bus 12
I/O
124
D11
D11
Data Bus 11
I/O
186
D10
D10
Data Bus 10
I/O
240
D9
D9
Data Bus 9
I/O
123
D8
D8
Data Bus 8
I/O
185
D7
D7
Data Bus 7
I/O
122
D6
D6
Data Bus 6
I/O
51
D5
D5
Data Bus 5
I/O
184
D4
D4
Data Bus 4
I/O
121
D3
D3
Data Bus 3
I/O
50
D2
D2
Data Bus 2
I/O
49
D1
D1
Data Bus 1
I/O
183
D0
D0
Data Bus 0
I/O
Pin No.
Name
Function Name
Function
Polarity
I/O