Renesas User System Interface Cable HS2655ECH61H Informacje Techniczne Pobierz pdf (Strona 23)

Section 3 Notes on Use

O O

O R

ter

er er

er D

iff

ffff

ffere

ereere

eren

nce

cece

ces

s s

s b

wee

eeee

een

n n

n A

l l

l M

MCU

CU CU

CU a

and

nd nd

nd E

E6000

60006000

6000

In the E6000, one evaluation chip emulates several types of MCU. Therefore, there are some

differences in I/O registers between an actual MCU and the E6000. Note these differences when

accessing the I/O registers.

I/O port is in the input state at default. The I/O register contents indicate the emulator port status.

When the user system interface cable is not connected, the read value is 1 due to the emulator's

pull-up resistors.

In E6000, accesses to the following registers for controlling the flash memory are invalid.

· RAM emulation register (RAMER: H'FEDB)

· System control register 2 (SYSCR2: H'FF42)

· Flash memory control register 1 (FLMCR1: H'FFC8)

· Flash memory control register 2 (FLMCR2: H'FFC9)

· Erase block register 1 (EBR1: H'FFCA)

· Erase block register 2 (EBR2: H'FFCB)

Acce

ccecce

ccess

ss ss

ss t

o o

o t

e e

e R

ser

erer

erv

d d

d A

Are

rere

rea

When accessing the reserved area, note the following:

1. Part of the reserved area (specified in each MCUs memory map) can be used as an external

address area when the EAE bit of the BCRL is set to "1". User (user memory) or Emulator

(optional memory) can be specified for this area with the Memory Mapping settings.

2. If the reserved area other than that described in item 1 above is used, the operation in the actual

MCU cannot be guaranteed. If the user program extends to the reserved area during

debugging, select the MCU having the largest ROM capacity (for example, debug the program

for H8S/2653 with the H8S/2655 memory mapping).

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