Digi NS9750 - Manual (Page 578)

I n t e r r u p t C o d e s
5 5 4 N S 9 7 5 0 H a r d w a r e R e f e r e n c e
2
hex
M_NO_ACK Master No acknowledge by slave
3
hex
M_TX_DATA Master TX data required in register TX_DATA
4
hex
M_RX_DATA Master RX data available in register RX_DATA
5
hex
M_CMD_ACK Master Command acknowledge interrupt
6
hex
N/A N/A Reserved
7
hex
N/A N/A Reserved
8
hex
S_RX_ABORT Slave The transaction is aborted by the master before
the slave performs a
NO_ACK .
9
hex
S_CMD_REQ Slave Command request
A
hex
S_NO_ACK Slave No acknowledge by master ( TX_DATA_REG is
reset)
B
hex
S_TX_DATA_1ST Slave TX data required in register TX_DATA , first byte
of transaction
C
hex
S_RX_DATA_1ST Slave RX data available in register RX_DATA , first byte
of transaction
D
hex
S_TX_DATA Slave TX data required in register TX_DATA
E
hex
S_RX_DATA Slave RX data available in register RX_DATA
F
hex
S_GCA Slave General call address
Code Name Master/slave Description
Table 342: Master/slave interrupt codes