
4 PINS
22
EPSON
S1C38000 TECHNICAL MANUAL
4.2.7 USB
4.2.8 Pulse Width Modulation (PWM)
4.2.9 UART / IrDA
Table 4-7 USB
Pin Name
Type
Cell
QFP
Pin #
CFLGA
Pin #
Description
Selection
USBDP
IO
CUS
41
B11
DP Data signal.
This pin is hi-Z during RESET#. This pin must
be pulled high or low externally.
USBDM
IO
CUS
42
B12
DM Data signal.
This pin is hi-Z during RESET#. This pin must
be pulled high or low externally.
USBDETECT
I
CI
39
A10
An interrupt-generating input that detects the
presence of the USB host. Changes on the
input must be stable for 8 IOCLK periods
before they are recognized.
Non-inverting 3.3V Input.
USBPUP
O
OB1
38
B10
An output that enables a pull-up on the
USBDP or USBDM line to indicate to the USB
host the presence of the S1C38000 USB
client.
Output Buffer (IOL=3mA)
Table 4-8 Pulse Width Modulation (PWM)
Pin Name
Type
Cell
QFP
Pin #
CFLGA
Pin #
Description
Selection
PWMOUT0
O
OB1
165
L3
This default output pin has the following
functions:
Pulse Width Modulated output from PWM0.
GPO Port G bit 0 pin (output only).
Output Buffer (IOL=3mA)
PWMOUT1
O
OB1
164
N3
This default output pin has the following
functions:
Pulse Width Modulated output from PWM1.
GPO Port G bit 1 pin (output only).
Output Buffer (IOL=3mA)
Table 4-9 UART / IrDA
Pin Name
Type
Cell
QFP
Pin #
CFLGA
Pin #
Description
Selection
TXD1
IO
CBG1
178
L5
This default output pin has the following
functions:
UART mode: Channel 1 TXD - transmit data.
GPIO Port E bit 0 pin.
Bidirectional Buffer with
AND Type Gated Input
(IOL=3mA)
RXD1
IO
CBG1
179
M6
This default input pin has the following
functions:
UART mode: Channel 1 RXD - received
data.
GPIO Port E bit 1 pin.
Bidirectional Buffer with
AND Type Gated Input
(IOL=3mA)
RTS1
IO
CBG1
180
J4
This default output pin has the following
functions:
UART mode: Channel 1 RTS - request to
send output.
GPIO Port E bit 2 pin.
Bidirectional Buffer with
AND Type Gated Input
(IOL=3mA)
CTS1
IO
CBG1
181
J3
This default input pin has the following
functions:
UART mode: Channel 1 CTS - clear to send
input.
GPIO Port E bit 3 pin.
Bidirectional Buffer with
AND Type Gated Input
(IOL=3mA)
TXD2 /
IRTXD
IO
CBG1
182
G1
This default output pin has the following
functions:
UART mode: Channel 2 TXD - transmit data.
IrDA mode: ITXD - transmit data to IR
transceiver.
GPIO Port E bit 4 pin.
Bidirectional Buffer with
AND Type Gated Input
(IOL=3mA)
RXD2 /
IRRXD
IO
CBG1
183
H1
This default input pin has the following
functions:
UART mode: Channel 2 RXD - received
data.
IrDA mode: IRXD - receive data from IR
transceiver.
GPIO Port E bit 5 pin.
Bidirectional Buffer with
AND Type Gated Input
(IOL=3mA)