3069RF-ZTAT Datasheet, PDF (80/1003 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER

Mode 5 is an externally expanded mode that enables access to external memory and peripheral
devices and also enables access to the on-chip ROM. Mode 5 supports a maximum address space
of 16 Mbytes.
Mode 7 are single-chip modes that operate using the on-chip ROM, RAM, and registers, and
makes all I/O ports available. Mode 7 supports a maximum address space of 1 Mbyte.
The H8/3069R can be used only in modes 1 to 5, 7. The inputs at the mode pins must select one of
these six modes. The inputs at the mode pins must not be changed during operation.
3.1.2 Register Configuration
The H8/3069R has a mode control register (MDCR) that indicates the inputs at the mode pins
(MD₂ to MD₀), and a system control register (SYSCR). Table 3.2 summarizes these registers.
Table 3.2 Registers
Address*
Name
Abbreviation R/W
H'EE011
Mode control register
MDCR
R
H'EE012
System control register SYSCR
R/W
Note: * Lower 20 bits of the address in advanced mode.
Initial Value
Undetermined
H'09
Rev. 5.0, 09/04, page 58 of 978