Epson S1C17W14 Technical Manual page 26

Pin/pad Assigned
name signal
P43 P43
RFIN1
SEG42
SEG48
P44 P44
SEG47
PD0 DST2
PD0
PD1 DSIO
PD1
PD2 DCLK
PD2
PD3 PD3
OSC3
PD4 PD4
OSC4
COM0–3 COM0–3
COM4 COM4
SEG0
COM5 COM5
SEG1
COM6 COM6
SEG2
COM7 COM7
SEG3
SEG4–41 SEG4–41
SEG42–46 SEG42–46
Note: In the peripheral circuit descriptions, the assigned signal name is used as the pin name.
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.
Table 1.3.3.2 Peripheral Circuit Input/output Function Selectable by UPMUX
Peripheral circuit
Synchronous serial
interface
(SPIA)
I C
2
(I2C)
UART
(UART)
16-bit PWM timer
(T16B)
Note: Do not assign a function to two or more pins simultaneously.
S1C17W14/W16 TECHNICAL MANUAL
(Rev. 1.2)
Tolerant
I/O Initial state fail-safe
structure
I/O Hi-Z
✓
A
A
A
I/O Hi-Z
✓
A
O O (L) –
I/O
I/O I (Pull-up) –
I/O
O O (H) –
O
I/O Hi-Z –
A
I/O Hi-Z –
A
A Hi-Z –
A Hi-Z –
A
A Hi-Z –
A
A Hi-Z –
A
A 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
SDAn I/O
USINn I
USOUTn O
TOUTn0/CAPn0 I/O
TOUTn1/CAPn1 I/O
Seiko Epson Corporation
Function
I/O port
R/F converter Ch.1 oscillation input
LCD segment output
LCD segment output
I/O port
LCD segment output
On-chip debugger status output
I/O port
On-chip debugger data input/output
I/O port
On-chip debugger clock output
Output port
I/O port
OSC3 oscillator circuit input
I/O port
OSC3 oscillator circuit output
LCD common output
LCD common output
LCD segment output
LCD common output
LCD segment output
LCD common output
LCD segment output
LCD common output
LCD segment output
LCD segment output
LCD segment output
Channel number n
S1C17W14: n = 0, 1 SPIA Ch.n data input
S1C17W16: n = 0, 1, 2
SPIA Ch.n data output
SPIA Ch.n clock input/output
SPIA Ch.n slave-select input
S1C17W14: n = 0 I2C Ch.n clock input/output
S1C17W16: n = 0
I2C Ch.n data input/output
S1C17W14: n = 0, 1 UART Ch.n data input
S1C17W16: n = 0, 1
UART Ch.n data output
S1C17W14: n = 0, 1 T16B Ch.n PWM output/capture input 0
S1C17W16: n = 0, 1
T16B Ch.n PWM output/capture input 1
1 OVERVIEW
✓ ✓
– ✓
✓ –
– ✓
– ✓
– ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
– ✓
Function
1-13