ACR89U-A1 – Reference Manual
Version 1.04
www.acs.com.hk
Page 23 of 57
Offset
Field Name
Type Size Value
Description
15
bRTCValue
BCD
6
-
New real time clock value. Format in
YY, MM, DD, HH, MI and SS
The response to this command is the
ACR89_to_PC_TimeStamp
message.
3.5.2.10. PC_to_ACR89_Buzzer
Offset
Field Name
Type Size Value
Description
10
BCmdCode
Hex
1
0Ah
-
11
wCmdLength
Hex
2
0002h Size of command data (in big
endian)
13
abRfu
Hex
2
0000
-
15
bBuzzerState
Hex
1
01h
01h = Buzzer on
00h = Buzzer off
16
BbuzzerOnDuration
Hex
1
-
Buzzer on duration in number of
hundredth milliseconds.
Effective only when
bBuzzerState
field is 01h.
00h = Activate buzzer and do
not turn off the buffer
Other value = Activate buzzer
for number of hundredth
milliseconds and then turn off
the buzzer
The response to this command is the
ACR89_to_PC_Echo
message.
3.5.2.11. PC_to_ACR89_AccessEeprom
This command allows user write or read data from the EEPROM. Maximum allow data length is
249Byte.
Offset
Field Name
Type Size
Value
Description
10
bCmdCode
Hex
1
21h
-
11
wCmdLength
Hex
2
Var… Size of command data (in big endian)
13
AbRFU
Hex
2
0000h
-
15
bAccessMode
Ascii
1
-
‘W’ – write EEPROM
‘R’ – read EEPROM
16
BDeviceNumber
Hex
1
-
00 – Slave EEPROM
01- Chinese Font EEPROM (Rfu)
17
AbAddress
Hex
4
-
Address of EEPROM (in big endian)
21
wDataLength
Hex
2
Var… Length of Data ( Write/Read ) (in big
endian)