Output Format

The Output Format register shares the same specification among most templates; this paragraph details this common implementation.

For templates that have their own specification for Output Format, it is detailed directly in the template’s chapter.

Register t1: output format

This register has 2 different specifications:

Numeric output (raw/hexadecimal or decimal) is selected if bit 6 in byte 0 is 0
String output (ASCII or UTF8) is selected if bit 6 in byte 0 is 1

For a numeric output, the register has 1 or 2 bytes. If only byte 0 is defined, byte 1 defaults to 00.

Byte	Bits	Content
0	7	Direction `0` : direct direction (send the data bytes as they are retrieved from the RF card) `1` : reverse direction (swap bytes)
	6	Numeric output, must be `0`
	5	RFU, must be `0`
	4	Suppress leading zeros `0` : keep all digits `1` : suppress digit `0` on the left
	3-0	Format and length `0000` : Decimal, 4 bytes as 10 digits `0001` : Raw/Hexadecimal, 4 bytes `0010` : Raw/Hexadecimal, 8 bytes `0011` : Raw/Hexadecimal, 5 bytes `0100` : Raw/Hexadecimal, 10 bytes `0101` : Raw/Hexadecimal, 7 bytes `0110` : Raw/Hexadecimal, 11 bytes `0111` : RFU `1000` : Raw/Hexadecimal, 16 bytes `1001` : Raw/Hexadecimal, 20 bytes `1010` : Raw/Hexadecimal, 24 bytes `1011` : Raw/Hexadecimal, 32 bytes `1100` : Decimal, 5 bytes as 12 digits `1101` : Decimal, 5 bytes as 13 digits `1110` : Decimal, variable length `1111` : Raw/Hexadecimal, variable length
1	7	RFU, must be `0`
	6-4	Drop first bits (`000` i.e. 0 to `111` i.e. 7)
	3-0	Drop first bytes (`0000` i.e. 0 to `1111` i.e. 15)

For a variable-length string output, the register has 1 or 2 bytes. If only byte 0 is defined, byte 1 defaults to 00.

Byte	Bits	Content
0	7	Direction `0` : direct direction (send the data bytes as they are retrieved from the RF card) `1` : reverse direction (swap bytes)
	6	String output, must be `1`
	5	RFU, must be `0`
	4	Variable length string, must be `1`
	3-0	RFU, must be `0000`
1	7-0	Max output length from `01` to `FF`. Use `00` for ‘no limit’.

For a fixed-length string output, the register has 1 byte only.

Byte	Bits	Content
0	7	Direction `0` : direct direction (send the data bytes as they are retrieved from the RF card) `1` : reverse direction (swap bytes)
	6	String output, must be `1`
	5	Padding with SPACE char, if too short `0` : padd on the left (before the string) `1` : padd on the right (after the string)
	4	Fixed length string, must be `1`
	3-0	Length `0000` : 16 characters `0001` : 1 character `0010` : 2 characters `0011` : 3 characters `0100` : 4 characters `0101` : 5 characters `0110` : 6 characters `0111` : 7 characters `1000` : 8 characters `1001` : 9 characters `1010` : 10 characters `1011` : 11 characters `1100` : 12 characters `1101` : 13 characters `1110` : 14 characters `1111` : 15 characters