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S1C17M10
Pin/pad
Assigned
name
signal
PD1
DSIO
PD1
SEG70
PD2
DCLK
PD2
SEG69
PD3
PD3
OSC3
PD4
PD4
OSC4
COM0–8
COM0–8
SEG0–68
SEG0–68
Universal port multiplexer (UPMUX)
The universal port multiplexer (UPMUX) allows software to select the peripheral circuit input/output function to be assigned
to each pin from those listed below. Note, however, that a function cannot be assigned to two or more pins simultaneously.
Peripheral circuit
Synchronous serial interface
(SPIA)
I
C
2
(I2C)
UART
(UART2)
16-bit PWM timer
(T16B)
Smart card interface
(SMCIF)
8
Tolerant fail-
I/O
Initial state
safe structure
I/O
I (Pull-up)
✓
I/O
A
O
O (H)
–
O
A
I/O
Hi-Z
✓
A
I/O
Hi-Z
✓
A
A
Hi-Z
–
A
Hi-Z
–
Signal to be assigned
I/O
SDIn
I
SDOn
O
SPICLKn
I/O
#SPISSn
I
SCLn
I/O n = 0
SDAn
I/O
USINn
I
USOUTn
O
TOUTn0/CAPn0
I/O n = 0
TOUTn1/CAPn1
I/O
SMCCLKn
I/O n = 0
SMCIOn
I/O
Seiko Epson Corporation
On-chip debugger data input/output
I/O port
LCD segment output
On-chip debugger clock output
Output port
LCD segment output
I/O port
OSC3 oscillator circuit input
I/O port
OSC3 oscillator circuit output
LCD common output
LCD segment output
Channel number n
n = 0
SPIA Ch.n data input
SPIA Ch.n data output
SPIA Ch.n clock input/output
SPIA Ch.n slave-select input
I2C Ch.n clock input/output
I2C Ch.n data input/output
n = 0
UART2 Ch.n data input
UART2 Ch.n data output
T16B Ch.n PWM output/capture input 0
T16B Ch.n PWM output/capture input 1
SMCIF Ch.n clock input/output
SMCIF Ch.n data input/output
Function
Function
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