w78l365a Winbond Electronics Corp America, w78l365a Datasheet - Page 20

• Manufacturer Part Number: w78l365a
• Description: 8-bit Microcontroller
• Manufacturer: Winbond Electronics Corp America

5.9.1
This register is protected by CHPENR register. Please write as below procedures while you
would like to write CHPCON register.
Mov CHPENR, #87h
Mov CHPENR, #59h
Anl CHPCON, #EFh ;Disable AUX-RAM
Mov CHPENR, #0h
Erase 64KB APROM
Program 64KB APROM
Read 64KB APROM
Erase 4KB LDROM
Program 4KB LDROM
Read 4KB LDROM
BIT
7
6
5
4
3
2
1
0
In-System Programming Control Register (CHPCON)
ENAUXRAM
MODE
SWRESET
FPROGEN
FBOOTSL
LD/AP
NAME
1
-
-
When this bit is set to 1, and both FBOOTSL and FPROGEN are set to 1. It
will enforce microcontroller reset to initial condition just like power on reset.
Reserve.
This bit is read only. 1: CPU is running LDROM program. 0: CPU is running
APROM program.
1: Enable on-chip AUX-RAM.
0: Disable the on-chip AUX-RAM
Must be 1
Reserve.
When this bit is set to 1, and both SWRESET and FPROGEN are set to 1. It
will enforce microcontroller reset to initial condition just like power on reset.
When this bit is set to 1, and both SWRESET and FBOOTSL are set to 1. It
will enforce microcontroller reset to initial condition just like power on reset.
WFWIN
0
0
0
1
1
1
CTRL<3:0>
CHPCON (BFH)
0010
0001
0000
0010
0001
0000
- 20 -
OEN
1
1
0
1
1
0
FUNCTION
W78LE365/W78L365A
CEN
Publication Release Date: April 28, 2008
0
0
0
0
0
0
SFRAH, SFRAL
Address in
Address in
Address in
Address in
X
X
Revision A8
Data out
Data out
SFRFD
Data in
Data in
X
X