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| 3069RF-ZTAT Datasheet, PDF (86/1003 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER | |||
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3.5 Pin Functions in Each Operating Mode
The pin functions of ports 1 to 5, A and port 67 vary depending on the operating mode. Table 3.3
indicates their functions in each operating mode.
Table 3.3 Pin Functions in Each Mode
Port Mode 1
Mode 2
Mode 3
Mode 4
Mode 5
Mode 7
Port 1 A7 to A0
A7 to A0
A7 to A0
A7 to A0
P17 to P10*2
P17 to P10
Port 2 A15 to A8
A15 to A8
A15 to A8
A15 to A8
P27 to P20*2
P27 to P20
Port 3 D15 to D8
D15 to D8
D15 to D8
D15 to D8
D15 to D8
P37 to P30
Port 4 P47 to P40*1
D7 to D0*1
P47 to P40*1
D7 to D0*1
P47 to P40*1
P47 to P40
Port 5 A19 to A16
A19 to A16
A19 to A16
A19 to A16
P53 to P50*2
P53 to P50
Port 67 Ï*5
Ï*5
Ï*5
Ï*5
Ï*5
P67 *5
Port A PA7 to PA4
PA7 to PA4
PA6 to PA4,
A20*3
PA6 to PA4,
A20*3
PA7 to PA4*4
PA7 to PA4
Notes: 1. Initial state. The bus mode can be switched by settings in ABWCR. These pins function
as P47 to P40 in 8-bit bus mode, and as D7 to D0 in 16-bit bus mode.
2. Initial state. These pins become address output pins when the corresponding bits in the
data direction registers (P1DDR, P2DDR, P5DDR) are set to 1.
3. Initial state. A is always an address output pin. PA to PA are switched over to A to
20
6
4
23
A21 output by writing 0 in bits 7 to 5 of BRCR.
4. Initial state. PA7 to PA4 are switched over to A23 to A20 output by writing 0 in bits 7 to 4 of
BRCR.
5. Initial state. In modes 1 to 5 Ï12 can be set as P67 by writing 1 to bit 7 in MSTCRH. In
mode
7
P6
7
can
be
set
to
Ï
output
by
writing
0
to
bit
7
in
MSTCRH.
Rev. 5.0, 09/04, page 64 of 978
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