User`s manual

3.4.8 Differences in Values of Registers

Note that certain general and control registers of both emulators are initialized whenever the system is activated

or the evaluation chip is reset by a command.

Table 3.5 Initial Values of Registers in the H8SX/1600-series MCU and the Emulator

Emulator

Power On

Reset (Reset CPU)

H8SX/1600-series

MCU

(Power-On Reset)

PC PC value indicated by

the power-on reset

vector

PC value indicated by

the power-on reset

vector

Undefined

ER0 to ER7 H'00000000 Value before the reset Undefined

CCR B’1XXXXXXX B’1XXXXXXX B’1XXXXXXX

EXR B’01111111 Value before the reset B’01111111

MACH H'00000000 Value before the reset Undefined

MACL H'00000000 Value before the reset Undefined

VBR H'00000000 Value before the reset H'00000000

SBR H'FFFFFF00 Value before the reset H'FFFFFF00

Note: X indicates an undefined bit.

3.4.9 Emulation Memory

The total size of emulation memory installed in this emulator is 4 Mbytes. This can be used as four 1-Mbyte

blocks at maximum. To allocate memory, the start address must be aligned to a 1-Mbyte boundary. The

emulation memory and user memory cannot coexist on a single address.

Emulation memory must be allocated to a 3-state access space. The number of access-state cycles for the

emulation memory is three plus wait-state cycles. Set up the bus-state controller so that no wait-state cycle will

be inserted for access to such areas.