User's Manual

ACR122L
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USB
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ACS
Please follow the DDRAM table below for the LCD character position’s representation
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 DISPLAY
POSITION
FIRST LINE 00 01 02 03 04 05 06 07
SECOND LINE 40 41 42 43 44 45 46 47
LCD XY
POSITION
Lc: LCD Message Length
The length of the LCD message (max. 0x10); If the message length is longer than the number of
character that the LCD screen’s can be shown, then the redundant character will not be shown on the
LCD
The length of the LCD message should multiple of 2 because each Chinese Character (GB code)
should be contain two bytes
Data In: LCD Message
The data to be sent to LCD, maximum 8(2 x 8bit each character) Character for each line
Please follow the Fonts table of GB Coding
Data Out: SW1 SW2.
Table 8.0B: Status Code
Results SW1 SW2 Meaning
Success 90 00 The operation is completed successfully.
Error 63 00 The operation is failed.
6.3.8. Pseudo APDU for LCD Display (Graphic Mode)
This APDU is used to Display LCD Message in Graphic Mode
Table 9.0A: LCD Display Command Format (5 Bytes + LCD Message Length)
Command Class INS P1 P2 Lc Data In
(max. 128 Bytes)
LCD Display 0xFF 0x00 0x6A Line Index
Pixel Data
Length
Pixel Data
P2: Line Index
To set which line to start to update the LCD Display
Refer to Below LCD Display Position
Lc: Pixel Data Length
The length of the pixel data (max. 0x80)
Data In: Pixel Data
The pixel data to be sent to LCD for display
LCD Display Position (Total LCD Size: 128x32):
Byte 0x00 (X = 0x00) Byte 0x01 (X = 0x01) … Byte 0x0F (X = 0x0F)
7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 … 7 6 5 4 3 2 1 0
0x00