EEC Register
Bit
7
6
5
4
3
2
1
0
Name
¾
¾
¾
¾
WREN
WR
RDEN
RD
R/W
¾
¾
¾
¾
R/W
R/W
R/W
R/W
POR
¾
¾
¾
¾
0
0
0
0
Bit 7~4
unimplemented, read as
²
0
²
Bit 3
WREN
: data EEPROM write enable
0: disable
1: enable
This is the Data EEPROM Write Enable Bit which must be set high before Data EEPROM write
operations are carried out. Clearing this bit to zero will inhibit Data EEPROM write operations.
Bit 2
WR
: EEPROM write control
0: Write cycle has finished
1: Activate a write cycle
This is the Data EEPROM Write Control Bit and when set high by the application program will
activate a write cycle. This bit will be automatically reset to zero by the hardware after the write
cycle has finished. Setting this bit high will have no effect if the WREN has not first been set high.
Bit 1
RDEN
: Data EEPROM read enable
0: disable
1: enable
This is the Data EEPROM Read Enable Bit which must be set high before Data EEPROM read
operations are carried out. Clearing this bit to zero will inhibit Data EEPROM read operations.
Bit 0
RD
: EEPROM read control
0: read cycle has finished
1: activate a read cycle
This is the Data EEPROM Read Control Bit and when set high by the application program will
activate a read cycle. This bit will be automatically reset to zero by the hardware after the read
cycle has finished. Setting this bit high will have no effect if the RDEN has not first been set high.
Note:
The WREN, WR, RDEN and RD can not be set to
²
1
²
at the same time in one instruction. The WR and RD can
not be set to
²
1
²
at the same time.
EED Register
Bit
7
6
5
4
3
2
1
0
Name
D7
D6
D5
D4
D3
D2
D1
D0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
POR
x
x
x
x
x
x
x
x
²
x
²
unknown
Bit 7~0
Data EEPROM data
Data EEPROM data bit 7~bit 0
BS83B08-3/B12-3/B16-3/B16G-3/C24-3
8-Bit Touch Key Flash MCU
Rev. 1.50
33
April 28, 2020
