HD64F3028F25 Datasheet, PDF (94/925 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series

3.5 Pin Functions in Each Operating Mode
The pin functions of ports 1 to 5 and port A 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 6
Mode 7
Port 1
Port 2
A7 to A0
A15 to A8
A7 to A0
A15 to A8
A7 to A0
A15 to A8
A7 to A0
A15 to A8
P17 to P10^*2 P17 to P10
P27 to P20^*2 P27 to P20
P17 to P10
P27 to P20
Port 3
Port 4
Port 5
Port A
D15 to D8
P47 to P40^*1
A19 to A16
PA7 to PA4
D15 to D8
D7 to D0^*1
A19 to A16
PA7 to PA4
D15 to D8
P47 to P40^*1
A19 to A16
PA6 to PA4,
A20^*3
D15 to D8
D7 to D0^*1
A19 to A16
PA6 to PA4,
A20^*3
D15 to D8
P47 to P40^*1
P53 to P50^*2
PA7 to PA4^*4
P37 to P30
P47 to P40
P53 to P50
PA7 to PA4
P37 to P30
P47 to P40
P53 to P50
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. A20 is always an address output pin. PA6 to PA4 are switched over to A23 to
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.
Rev. 2.00, 09/03, page 62 of 890