HD64F2149 Datasheet, PDF (57/1035 Pages) Renesas Technology Corp – Hitachi 16-Bit Single-Chip Microcomputer

Type Symbol
Operating MD1
mode MD0
control
Pin No.
FP-100B,
TFP-100B TFP-144 I/O
5
9
Input
6
10
Name and Function
Mode pins: These pins set the operating
mode. The relation between the settings of
pins MD1 and MD0 and the operating
mode is shown below. These pins should
not be changed while the MCU is
operating.
Operating
MD1 MD0 Mode
Description
0 1 Mode 1 Normal
Expanded mode
with on-chip ROM
disabled
1 0 Mode 2 Advanced
Expanded mode
with on-chip ROM
enabled or single-
chip mode
1 1 Mode 3 Normal
Expanded mode
with on-chip ROM
enabled or single-
chip mode
System
control
Address
bus
RES
1
8
RESO
100
142
STBY
8
12
A23 to A16 10, 11, 20, 33, 34,
21, 30, 31, 35, 37,
47, 48
38, 39,
40, 41
A15 to A0 60–67,
72–79
96-110,
112
Input Reset input: When this pin is driven low,
the chip is reset.
Output Reset output: Outputs reset signal to
external device.
Input
Standby: When this pin is driven low, a
transition is made to hardware standby
mode.
Output Address bus (advanced): Outputs
address when 16-Mbyte space is used.
Output Address bus: These pins output an
address.
23