III PERIPHERAL BLOCK: INPUT/OUTPUT PORTS
S1C33T01 FUNCTION PART
EPSON
B-III-10-5
Table 10.3
I/O Pins (continue)
Pin name
I/O
Pull-up
Function
Function select bit
P20/#DRD
I/O
–
I/O port / #DRD output
CFP20(D0)/P2 function select register(0x402D8)
P21/#DWE/
#GAAS
I/O
–
I/O port / #DWE output /
GA address strobe output (Ex)
CFP21(D1)/P2 function select register(0x402D8)
CFEX2(D2)/Port function extension register(0x402DF)
P22/TM0
I/O
–
I/O port / 16-bit timer 0 output
CFP22(D2)/P2 function select register(0x402D8)
P23/TM1
I/O
–
I/O port / 16-bit timer 1 output
CFP23(D3)/P2 function select register(0x402D8)
P24/TM2
I/O
–
I/O port / 16-bit timer 2 output
CFP24(D4)/P2 function select register(0x402D8)
P25/TM3
I/O
–
I/O port / 16-bit timer 3 output
CFP25(D5)/P2 function select register(0x402D8)
P26/TM4
I/O
–
I/O port / 16-bit timer 4 output
CFP26(D6)/P2 function select register(0x402D8)
P27/TM5
I/O
–
I/O port / 16-bit timer 5 output
CFP27(D7)/P2 function select register(0x402D8)
P30/#WAIT/
#CE4&5
I/O
–
I/O port / #WAIT input (I) / #CE4&5 output (O) CFP30(D0)/P3 function select register(0x402DC)
P31/#BUSGET/
#GARD
I/O
–
I/O port / #BUSGET output /
GA read signal output (Ex)
CFP31(D1)/P3 function select register(0x402DC)
CFEX3(D3)/Port function extension register(0x402DF)
P32/#DMAACK0 I/O
–
I/O port / #DMAACK0 output
CFP32(D2)/P3 function select register(0x402DC)
P33/#DMAACK1 I/O
–
I/O port / #DMAACK1 output
CFP33(D3)/P3 function select register(0x402DC)
P34/#BUSREQ/
#CE6
I/O
–
I/O port / #BUSREQ input (I) / #CE6 output(O) CFP34(D4)/P3 function select register(0x402DC)
P35/#BUSACK
I/O
–
I/O port / #BUSACK output
CFP35(D5)/P3 function select register(0x402DC)
P40/SIN2
I/O
–
I/O port / Serial IF Ch.2 data input
CFP40(D0)/P4 function select register(0x40300)
P41/SOUT2
I/O
–
I/O port / Serial IF Ch.2 data output
CFP41(D1)/P4 function select register(0x40300)
P42/#SCLK2
I/O
–
I/O port / Serial IF Ch.2 clock input/output
CFP42(D2)/P4 function select register(0x40300)
P43/#SRDY2
I/O
–
I/O port / Serial IF Ch.2 ready input/output
CFP43(D3)/P4 function select register(0x40300)
P44/SIN3
I/O
–
I/O port / Serial IF Ch.3 data input
CFP44(D4)/P4 function select register(0x40300)
P45/SOUT3
I/O
–
I/O port / Serial IF Ch.3 data output
CFP45(D5)/P4 function select register(0x40300)
P46/#SCLK3
I/O
–
I/O port / Serial IF Ch.3 clock input/output
CFP46(D6)/P4 function select register(0x40300)
P47/#SRDY3
I/O
–
I/O port / Serial IF Ch.3 ready input/output
CFP47(D7)/P4 function select register(0x40300)
P50/T8UF4
I/O
–
I/O port / 8-bit timer 4 output
CFP50(D0)/P5 function select register(0x40303)
P51/T8UF5
I/O
–
I/O port / 8-bit timer 4 output
CFP51(D1)/P5 function select register(0x40303)
P52
I/O
–
I/O port
–
P53
I/O
–
I/O port
–
P54
I/O
–
I/O port
–
P55
I/O
–
I/O port
–
P60
I/O
–
I/O port
–
P61
I/O
–
I/O port
–
P62
I/O
–
I/O port
–
P63
I/O
–
I/O port
–
P64
I/O
–
I/O port
–
P65
I/O
–
I/O port
–
P66
I/O
–
I/O port
–
P67
I/O
–
I/O port
–
P70/SCL0
I/O
–
I/O port / Single-master I
2C-bus Ch.0 clock
input/ouput
CFP70(D0)/P7 function select register(0x4030A)
P71/SDA0
I/O
–
I/O port / Single-master I
2C-bus Ch.0 data
input/ouput
CFP70(D0)/P7 function select register(0x4030A)
P72/SCL1
I/O
–
I/O port / Single-master I
2C-bus Ch.1 clock
input/ouput
CFP71(D1)/P7 function select register(0x4030A)
P73/SDA1
I/O
–
I/O port / Single-master I
2C-bus Ch.1 data
input/ouput
CFP71(D1)/P7 function select register(0x4030A)
P74
I/O
–
I/O port
–
P75
I/O
–
I/O port
–
P76
I/O port
–
P77
I/O port
–
P80/EXCL6
I/O
–
I/O port / 16-bit timer 6 event counter input
CFP80(D0)/P8 function select register(0x4030D)
P81/EXCL7
I/O
–
I/O port / 16-bit timer 7 event counter input
CFP81(D1)/P8 function select register(0x4030D)
P82/EXCL8
I/O
–
I/O port / 16-bit timer 8 event counter input
CFP82(D2)/P8 function select register(0x4030D)
P83/EXCL9
I/O
–
I/O port / 16-bit timer 9 event counter input
CFP83(D3)/P8 function select register(0x4030D)
P84/TM6
I/O
–
I/O port / 16-bit timer 6 output
CFP84(D4)/P8 function select register(0x4030D)
P85/TM7
I/O
–
I/O port / 16-bit timer 7 output
CFP85(D5)/P8 function select register(0x4030D)
P86/TM8
I/O
–
I/O port / 16-bit timer 8 output
CFP86(D6)/P8 function select register(0x4030D)
P87/TM9
I/O
–
I/O port / 16-bit timer 9 output
CFP87(D7)/P8 function select register(0x4030D)
(I): Input mode, (O): Output mode, (Ex): Extended function