h8s-2138 Renesas Electronics Corporation., h8s-2138 Datasheet - Page 75

• Manufacturer Part Number: h8s-2138
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Type
Serial com-
munication
interface
(SCI0, SCI1,
SCI2)
SCI with
IrDA (SCI2)
Host
interface
(HIF)
Keyboard
control
Symbol
TxD0
TxD1
TxD2
RxD0
RxD1
RxD2
SCK0
SCK1
SCK2
IrTxD
IrRxD
HDB7 to
HDB0
CS1,
CS2,
ECS2
IOR
IOW
HA0
GA20
HIRQ11
HIRQ1
HIRQ12
HIFSD
KIN0 to
KIN7
Pin No.
FP-80A
TFP-80C
11
78
39
10
79
40
9
80
41
39
40
72 to 65
15, 75, 20
17
16
74
75
42
43
44
76
21 to 24,
25 to 28
I/O
Output Transmit data: Data output pins.
Input
Input/
output
Output
Input
Input/
output
Input
Input
Input
Input
Output GATE A20: A20 gate control signal output pin.
Output Host interrupt 11, 1, and 12: Output pins for
Input
Input
Name and Function
Receive data: Data input pins.
Serial clock: Clock input/output pins.
The SCK0 output type is NMOS push-pull in the
H8S/2138 Group and CMOS output in the
H8S/2134 Group.
IrDA transmit data/receive data: Input and output
pins for data encoded for IrDA use.
Host interface data bus: Bidirectional 8-bit bus for
accessing the host interface.
Chip select 1 and 2: Input pins for selecting host
interface channel 1 or 2.
I/O read: Input pin that enables reading from the
host interface.
I/O write: Input pin that enables writing to the host
interface.
Command/data: Input pin that indicates whether
an access is a data access or command access.
interrupt requests to the host.
Host interface shutdown: Control input pin used
to place host interface input/output pins in the high-
impedance/cutoff state.
Keyboard input: Matrix keyboard input pins.
Normally, P10 to P17 and P20 to P27 are used as
key-scan outputs. This enables a maximum 16-
output
16-input, 256-key matrix to be configured.
Rev. 4.00 Jun 06, 2006 page 21 of 1004
Section 1 Overview
REJ09B0301-0400