Analog Devices ADSP-SC58 Series Hardware Reference Manual page 3140

ADSP-SC58x PKTE Register Descriptions
Table 44-54: PKTE_INT_EN Register Fields (Continued)
Bit No.
(Access)
10 IBUFTHRSH
(R/W)
9 OPDN
(R/W)
1 RDRTHRSH
(R/W)
0 CDRTHRSH
(R/W)
44–92
Bit Name
Input Buffer Threshold.
Set the PKTE_INT_EN.IBUFTHRSH bit for to trigger an interrupt when the input
buffer counter is less than or equal to the input buffer threshold value defined in the
PKTE_BUF_THRESH.INBUF bit.
Operation Done.
RDR Threshold.
Set the PKTE_INT_EN.RDRTHRSH bit for to trigger an interrupt when the number
of result descriptors for the host in the RDR exceeds the RD threshold value in the
PKTE_RING_THRESH.RDRTHRSH bit, or the RD counter for the RDR in
PKTE_RDSC_CNT
cycles.
CDR Threshold.
Set the PKTE_INT_EN.CDRTHRSH bit for to trigger an interrupt when the number
of command descriptors for the packet engine in the CDR is less than or equal to the
CD threshold value in the PKTE_RING_THRESH.CDRTHRSH bit.
ADSP-SC58x/ADSP-2158x SHARC+ Processor Hardware Reference
Description/Enumeration
register is non-zero for more than 2
(N+10)
internal system clock