Intel SA-1100 11-168 SA-1100

11-168 SA-1100 Developer’s Manual
Peripheral Control Module
6 TTU Telecom transmit FIFO underrun.
0 – Telecom transmit FIFO has not experienced an underrun.
1 – Telecom transmit logic attempted to fetch data from transmit FIFO while it was
empty, request interrupt.
7TRO
Telecom receive FIFO overrun.
0 – Telecom receive FIFO has not experienced an overrun.
1 – Telecom receive logic attempted to place data into receive FIFO while it was full,
request interrupt.
8ANF
Audio transmit FIFO not full (read-only).
0 – Audio transmit FIFO is full.
1– Audio transmit FIFO is not full.
9ANE
Audio receive FIFO not empty (read-only).
0 – Audio receive FIFO is empty.
1 – Audio receive FIFO is not empty.
10 TNF Telecom transmit FIFO not full (read-only).
0 – Telecom transmit FIFO is full.
1 – Telecom transmit FIFO is not full.
11 TNE Telecom receive FIFO not empty (read-only).
0 – Telecom receive FIFO is empty.
1 – Telecom receive FIFO is not empty.
12 CWC Codec write completed (read-only).
0 – A write to a codec register has not completed since the last time this bit was cleared.
1 – A write to a codec register has been transmitted and has updated the register.
13 CRC Codec read completed (read-only).
0 – The value read from the addressed codec register has not been returned to
MCDR2.
1 – The value read from the addressed codec register is now in MCDR2.
14 ACE Audio codec enabled (read-only).
0 – The audio codec input and output is disabled (bits 14 and 15 are 0 in Audio Control
Reg B).
1 – Audio codec input and/or output is enabled (bits 14 and/or 15 is 1 in Audio Control
Reg B).
15 TCE Telecom codec enabled.
0 – The telecom codec input and output is disabled (bits 14 and 15 are 0 in Telecom
Cntl Reg B).
1 – Telecom codec input and/or output is enabled (bits 14 and/or 15 is 1 in Telecom Cntl
Reg B).
31..16 — Reserved.
Bit Name Description