HD6432633 Datasheet, PDF (1444/1453 Pages) Renesas Technology Corp – Series of Microcomputers (MCUs: microcomputer units)

MCU
Port Name Operating
Pin Name Mode
Power-
On
Manual
Reset Reset
Hardware Software
Standby Standby
Mode Mode
Bus
Release
State
PG3/CS1 4 to 6
PG2/CS2
T
kept
T
[DDR = 1,
T
OPE = 0]
T
[DDR = 1,
OPE = 1]
H
[DDR = 0]
T
PG1/CS3/
OE/IRQ7
7
4 to 6
T
kept
T
kept
T
kept
kept
T
[DDR = 1,
T
OPE = 0]
T
[DDR = 1,
OPE = 1]
H
[DDR = 0]
T
PG0/CAS/
IRQ6
7
4 to 6
T
kept
T
kept
T
kept
kept
T
[DRAME = 0] T
kept
[DRAME = 1,
OPE = 1]
CAS
[DRAME = 1,
OPE = 1]
T
7
T
kept
T
kept
kept
Legend:
H
: High level
L
: Low level
T
: High impedance
kept
: Input port becomes high-impedance, output port retains state
DDR
: Data direction register
OPE
: Output port enable
WAITE : Wait input enable
BRLE : Bus release enable
BREQOE : BREQO pin enable
DRAME : DRAM space setting
LCASE : DRAM space setting, CW2 = LCASS = 0
Note: * Indicates the state after completion of the executing bus cycle.
Program
Execution
State
Sleep Mode
[DDR = 0]
Input port
[DDR = 1]
CS2 to CS1
I/O port
[DDR = 0]
Input port
[OE = 0,
DDR = 1]
CS3
[OE = 1,
DDR = 1]
OE
I/O port
[DRAME = 0]
I/O port
[DRAME = 1]
CAS
I/O port
1390