r4f2456 Renesas Electronics Corporation., r4f2456 Datasheet - Page 59

• Manufacturer Part Number: r4f2456
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

Type
System
control
Address
bus
Symbol
RES
STBY
EMLE
BSCANE *
A23 to A0
2
144-Pin
92
103
32

31 to 26,
24 to 19,
17 to 11,
9 to 5
H8S/2456, H8S/2456R
145-Pin
G11
D13
K1
L9
J3, K2, J1,
K4, H3, J2,
J4, G3, H2,
G1, H4,
G4, F1,
G2, F3,
E4, E1, F2,
E3, D1,
D3, D2,
C3, C1
Pin No.
29 to 23,
21 to 18,
16 to 9,
7 to 3
77
88
30

H8S/2454
120-Pin
I/O
Input
Input
Input
Input
Output These pins output an address.
Rev. 1.00 Sep. 19, 2008 Page 29 of 1342
Function
Reset pin. When this pin is driven
low, the chip is reset.
When this pin is driven low, a
transition is made to hardware
standby mode.
On-chip emulator enable pin. When
the on-chip emulator is used, this pin
should be fixed high. At this time,
pins P53, PG4 to PG6, and
WDTOVF are used exclusively by the
on-chip emulator. Therefore, the
corresponding pin functions of those
pins are not available. When the on-
chip emulator is not used, this pin
should be fixed low.
Boundary scan enable pin. When the
boundary scan function is used, this
pin should be fixed high. At this time,
pins P53, PG4 to PG6, and
WDTOVF are used exclusively for
boundary scan. Therefore, the
corresponding pin functions of those
pins are not available. When the
boundary scan function is not used,
this pin should be fixed low.
Section 1 Overview
REJ09B0467-0100