Datasheet

Table Of Contents
Section 1 Overview
REJ09B0140-0900 Rev. 9.00 Page 15 of 846
Sep 16, 2010
H8S/2215 Group
Pin No.
Type Symbol
TFP-120,
TFP-120V
BP-112,
BP-112V
I/O Function
Bus Control
CS7
CS6
CS5
CS4
CS3
CS2
CS1
CS0
97
98
99
100
102
103
104
105
C8
B8
A8
D7
A7
B7
C6
A6
Output Signals for selecting areas 7 to 0.
AS 79 E10 Output When this pin is low, it indicates that
address output on the address bus is
enabled.
RD 80 E9 Output When this pin is low, it indicates that
the external address space can be
read.
HWR 81 D11 Output A strobe signal that writes to external
space and indicates that the upper
half (D15 to D8) of the data bus is
enabled.
LWR 83 E8 Output A strobe signal that writes to external
space and indicates that the lower
half (D7 to D0) of the data bus is
enabled.
WAIT 85 D10 Input Requests insertion of a wait state in
the bus cycle when accessing
external 3-state address space.