HD6412240 RENESAS [Renesas Technology Corp], HD6412240 Datasheet - Page 118

• Manufacturer Part Number: HD6412240
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family / H8S/2200 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 3 MCU Operating Modes
3.3.4
The CPU can access a 16-Mbyte address space in advanced mode. The on-chip ROM is disabled.
Pins P1
bus, and part of port F carries bus control signals. Pins P1
immediately after a reset. They can each be set to output address use by setting the corresponding
bits in the data direction register (DDR) to 1.
The initial bus mode after a reset is 16 bits, with 16-bit access to all areas. However, note that if 8-
bit access is designated by the bus controller for all areas, the bus mode switches to 8 bits.
3.3.5
The CPU can access a 16-Mbyte address space in advanced mode. The on-chip ROM is disabled.
Pins P1
and part of port F carries bus control signals. Pins P1
after a reset. They can each be set to output address use by setting the corresponding bits in the
data direction register (DDR) to 1.
The initial bus mode after a reset is 8 bits, with 8-bit access to all areas. However, note that if at
least one area is designated for 16-bit access by the bus controller, the bus mode switches to 16
bits and port E becomes a data bus.
3.3.6
The CPU can access a 16-Mbyte address space in advanced mode. The on-chip ROM is enabled.
Pins P1
each be set to output addresses by setting the corresponding bits in the data direction register
(DDR) to 1. Port D functions as a data bus, and part of port F carries bus control signals.
The initial bus mode after a reset is 8 bits, with 8-bit access to all areas. However, note that if at
least one area is designated for 16-bit access by the bus controller, the bus mode switches to 16
bits and port E becomes a data bus.
Note: Mode 6 cannot be used in the H8S/2240.
Rev.3.00 Mar. 26, 2007 Page 76 of 772
REJ09B0355-0300
3
3
3
to P1
to P1
to P1
Mode 4
Mode 5
Mode 6
0
0
0
, and ports A, B, and C function as an address bus, ports D and E function as a data
, and ports A, B, and C function as an address bus, ports D functions as a data bus,
, and ports A, B, and C function as input ports immediately after a reset. They can
3
to P1
3
to P1
0
function as input ports immediately
0
function as input ports