HD64F2149 Datasheet, PDF (58/1035 Pages) Renesas Technology Corp – Hitachi 16-Bit Single-Chip Microcomputer

Pin No.
Type
FP-100B,
Symbol TFP-100B TFP-144 I/O
Name and Function
Data bus D15 to D8 89–82
128-121 Input/ Data bus (upper): Bidirectional data bus.
output Used for 8-bit data and upper byte of 16-bit
data.
D7 to D0
57, 58, 68, 113-130 Input/ Data bus (lower): Bidirectional data bus.
69, 80, 81,
output Used for lower byte of 16-bit data.
90, 91
Bus
WAIT
16
control
17
Input Wait: Requests insertion of a wait state in
the bus cycle when accessing external 3-
state address space.
RD
22
21
Output Read: When this pin is low, it indicates that
the external address space is being read.
HWR
19
20
Output High write: When this pin is low, it
indicates that the external address space is
being written to. The upper half of the data
bus is valid.
LWR
25
24
Output Low write: When this pin is low, it
indicates that the external address space is
being written to. The lower half of the data
bus is valid.
AS/IOS 18
19
Output Address strobe: When this pin is low, it
indicates that address output on the
address bus is valid.
Interrupt NMI
7
Signals
11
Input Nonmaskable interrupt: Requests a
nonmaskable interrupt.
IRQ0 to
IRQ7
16-bit
free-
running
timer
(FRT)
FTCI
FTOA
FTOB
23–25,
97–99,
34, 35
26
27
34
FTIA
28
22-24, Input
133-135,
84, 85
Interrupt request 0 to 7: These pins
request a maskable interrupt.
78
Input FRT counter clock input: Input pin for an
external clock signal for the free-running
counter (FRC).
79
Output FRT output compare A output: The
output compare A output pin.
84
Output FRT output compare B output: The
output compare B output pin.
80
Input FRT input capture A input: The input
capture A input pin.
24