M16C30P_07 Datasheet, PDF (56/317 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/30 SERIES

M16C/30P Group
7. Bus
Table 7.5 Pin Functions for Each Processor Mode
Processor Mode
Data Bus Width BYTE Pin
P0_0 to P0_7
P1_0 to P1_7
P2_0
P2_1 to P2_7
P3_0
P3_1 to P3_7
P4_0 to P4_3
P4_4
P4_5
P4_6
P4_7
P5_0
P5_1
P5_2
P5_3
P5_4
P5_5
P5_6
P5_7
PM06=0
PM06=1
CS0=0
CS0=1
CS1=0
CS1=1
CS2=0
CS2=1
CS3=0
CS3=1
PM02=0
PM02=1
PM02=0
PM02=1
Memory Expansion Mode or Microprocessor Mode
8 bits
“H”
16 bits
“L”
D0 to D7
D0 to D7
I/O ports
D8 to D15
A0
A0
A1 to A7
A1 to A7
A8
A8
A9 to A15
A16 to A19
I/O ports
I/O ports
CS0
I/O ports
CS1
I/O ports
CS2
I/O ports
CS3
WR
− ⁽¹⁾
WRL
BHE
− ⁽¹⁾
WRH
RD
BCLK
HLDA
HOLD
ALE
RDY
I/O ports : Function as I/O ports or peripheral function I/O pins.
NOTES:
1. If the data bus is 8 bits wide, make sure the PM02 bit is set to “0” (RD, BHE, WR).
Rev.1.22 Mar 29, 2007 Page 40 of 291
REJ09B0179-0122