HI-3110
Table 1. SPI Instruction Set (cont.)
SPI Instruction
Command Data Field
Hex
Bit Content
READ Commands (ctd)
Read General Purpose Pins
Enable Register
0xE8
1 byte
(see GPINE Register Definition)
Read REC Register
Read TEC Register
0xEA
0xEC
1 byte
1 byte
(see REC Register Definition)
(see TEC Register Definition)
Read Transmit History FIFO
0xEE
0x4E
0xF4
3 bytes
13 bytes
1 byte
(see Table 3)
Reserved
(Factory test purposes only)
Reserved
(Factory test purposes only)
Reserved
(Factory test purposes only)
0xF6
0xF8
0xFA
1 byte
1 byte
2 bytes
Read Bus-Off Recessive Count
Read Time Tag
(see TIMERUB and TIMERLB
Register Definitions)
RESET Commands
Abort Transmission
(stops current transmission and
resets TXEN & TX1M)
0x52
None
(see CTRL1 Register Definition)
Reset (Clear) Transmit FIFO
(resets TXEN & TX1M, but
completes current transmission)
0x54
0x56
0x58
None
None
None
Master Reset
Reset Time Tag Counter
(see TIMERUB and TIMERLB
Register Definitions)
Reset Receive FIFO
0x5A
None
HOLT INTEGRATED CIRCUITS
33