ACR89U-A1 – Reference Manual
Version 1.04
www.acs.com.hk
Page 24 of 57
Offset
Field Name
Type Size
Value
Description
23
bEeprom Data
Hex
Var..
-
EEPROM data
The response to this command is the
ACR89_to_PC_DataBlock
message.
3.5.2.12. PC_to_ACR89_SetLED
The command allows user to switch on/off of Power, slot1 and slot2 on card reader with color red and
green.
Offset Field Name Type Size
Value
Description
10
BcmdCode
Hex
1
22h
-
11
WcmdLength
Hex
2
0003h
Size of command data (in big endian)
13
AbRFU
Hex
2
0000h
-
15
Power LED
Hex
1
-
Bit0 : 1- Selects Red color
Bit1 : 1- Selects Green color
Bit2 : 1- Selects Yellow color
Bit7 : 0-OFF/1-ON
e.g. Turn ON red color 10000001b
Turn OFF green color 00000010b
Ignore xxxx0000b
16
Slot1 LED
Hex
1
-
Bit0 : 1- Selects Red color
Bit1 : 1- Selects Green color
Bit2 : 1- Selects Yellow color
Bit7 : 0-OFF/1-ON
17
Slot2 LED
Hex
1
-
Bit0 : 1- Selects Red color
Bit1 : 1- Selects Green color
Bit2 : 1- Selects Yellow color
Bit7 : 0-OFF/1-ON
The response to this command is
ACR89_to_PC_Echo
.
3.5.2.13. PC_to_ACR89_EraseSPIFlash
This command erases flash blocks.
Offset
Field Name
Type
Size Value.
Description
10
bCmdCode
Hex
1
30h
Command Code
11
bFlashType
Hex
1
02h
SPI flash
12
bRFU
Hex
1
00h
-
13
bStartBlockNum
Hex
1
-
Any number not zero, e.g. 01h
14
bEndBlockNum
Hex
1
-
Not less than
bStartBlockNum
The response to this command is the
ACR89_to_PC_ExMemStatus
message.
Note
: The current size of one flash block is 64k bytes.