Pin Descriptions - Epson S1C17M20 Technical Manual

1 OVERVIEW

1.3.4 Pin Descriptions

Symbol meanings
Assigned signal: The signal listed at the top of each pin is assigned in the initial state. The pin function must be
switched via software to assign another signal (see the "I/O Ports" chapter).
I/O: I
O
I/O
P
A
Hi-Z
Initial state: I (Pull-up)
I (Pull-down) = Input with pulled down
Hi-Z
O (H)
O (L)
Tolerant fail-safe structure:
✓
Pin/pad Assigned
I/O Initial state
name signal
V V P
DD DD
V V P
SS SS
V V P
PP PP
V V A
D1 D1
OSC1 OSC1 A
OSC2 OSC2 A
#RESET #RESET I
P00 P00 I/O
EXCL00 I
UPMUX I/O
P01 P01 I/O
EXCL01 I
UPMUX I/O
P02 P02 I/O
BZOUT O
UPMUX I/O
P03 P03 I/O
#BZOUT O
UPMUX I/O
P04 P04 I/O
RFCLKO0 O
UPMUX I/O
P05 P05 I/O
RFCLKO1 O
UPMUX I/O
P06 P06 I/O
UPMUX I/O
P07 P07 I/O
UPMUX I/O
P10 P10 I/O
UPMUX I/O
P11 P11 I/O
UPMUX I/O
P12 P12 I/O
REMO O
UPMUX I/O
1-8
= Input
= Output
= Input/output
= Power supply
= Analog signal
= High impedance state
= Input with pulled up
= High impedance state
= High level output
= Low level output
= Over voltage tolerant fail-safe type I/O cell included (see the "I/O Ports" chapter)
Table 1.3.4.1 Pin description
Tolerant
fail-safe
structure
– – Power supply (+)
– – GND
– – Power supply for Flash programming
– – V regulator output
D1
– – OSC1 oscillator circuit input
– – OSC1 oscillator circuit output
I (Pull-up) – Reset input
Hi-Z I/O port
✓
16-bit PWM timer Ch.0 event counter input 0
User-selected I/O (universal port multiplexer)
Hi-Z I/O port
✓
16-bit PWM timer Ch.0 event counter input 1
User-selected I/O (universal port multiplexer)
Hi-Z I/O port
✓
Sound generator output
User-selected I/O (universal port multiplexer)
Hi-Z I/O port
✓
Sound generator inverted output
User-selected I/O (universal port multiplexer)
Hi-Z I/O port
✓
R/F converter Ch.0 clock monitor output
User-selected I/O (universal port multiplexer)
Hi-Z I/O port
✓
R/F converter Ch.1 clock monitor output
User-selected I/O (universal port multiplexer)
Hi-Z I/O port
✓
User-selected I/O (universal port multiplexer)
Hi-Z I/O port
✓
User-selected I/O (universal port multiplexer)
Hi-Z I/O port
✓
User-selected I/O (universal port multiplexer)
Hi-Z I/O port
✓
User-selected I/O (universal port multiplexer)
Hi-Z I/O port
✓
IR remote controller transmit data output
User-selected I/O (universal port multiplexer)
Seiko Epson Corporation
Function
S1C17M20/M21/M22/M23/M24/M25
TECHNICAL MANUAL (Rev. 1.0)
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