Datasheet

Section 1 Overview
Rev. 2.00 Aug. 20, 2008 Page 18 of 1198
REJ09B0403-0200
Pin No.
Type Symbol
H8S/2462
144-Pin
H8S/2463
144-Pin
H8S/2472
176-Pin
I/O Name and Function
PWX0 to
PWX3
ExPWX0
to
ExPWX2
78 to
81, 21,
20, 10
77 to
80, 21,
20, 10
M13,
N15,
M14,
L12,
H3, H4,
E3
Output
14-bit PWM
timer
(PWMX)
ExPWX3   D4 
PWM D/A pulse output pins
Pin ExPWX3 is supported only by
the H8S/2472 Group.
TxD1,
TxD3
135, 43 133, 43 A7, N5 Output Transmit data output pins
RxD1,
RxD3
136, 44 134, 44 B7, P5 Input Receive data input pins
Serial
communi-
cation
interface
(SCI_1 and
SCI_3)
SCK1,
SCK3
45, 46 45, 46 R5, M6
Input/
Output
Clock input/output pins.
TxDF 16 16 G4 Output Transmit data output pin
RxDF 15 15 F2 Input Receive data input pin
CTS 82 81 M15 Input Transmit grant input pin
RTS 83 82 L13 Output Transmit request output pin
DTR 95 95 F15 Output Data terminal ready output pin
DSR 96 96 F14 Input Data set ready input pin
RI 97 97 E13 Input Ring indicator input pin
Serial
communi-
cation
interface
with FIFO
(SCIF)
DCD 98 98 E15 Input Data carrier detection input pin
SSCK 85 84 L15
Input/
Output
SSU clock I/O pin
SSI 139 137 A6
Input/
Output
SSU data I/O pin
SSO 138 136 C6
Input/
Output
SSU data I/O pin
Synchronous
serial
communi-
cation unit
(SSU)
SCS 84 83 L14
Input/
Output
SSU chip select I/O pin
I
2
C bus
interface
(IIC)
SCL0 to
SCL5
50, 48,
32, 30,
28, 60
50, 48,
32, 30,
28, 60
M7, R6,
M2, L1,
K1, N10
Input/
Output
IIC clock input/output pins. These
pins can drive a bus directly with
the NMOS open drain output.