Analog Devices ADSP-TS101 TigerSHARC Hardware Reference Manual page 292

External Port DMA
Table 7-10. External Memory TCB
– External I/O Device to External Memory (Flyby)
Receiver TCB Configuration
Register Field
DI
DX
DY
DP TY
DP PR
DP 2DDMA
DP LEN
DP INT
DP DRQ
DP CHEN
DP CHTG
DP CHPT
7-58
Description
External memory address
Number of words to transfer, increment is irrelevant.
The register also refers to X dimension data when the
DX
in the register.
DP
Number of Y dimension words to transfer and address modifier when
the bit is set in the
2DDMA
External memory
Channel priority
1 – Increases the channel priority – cluster bus transaction is
signaled as a Priority Access transaction
Sets the two-dimensional DMA mode
1 – Enables two-dimensional DMA mode; the
vant. (See "Two-Dimensional DMA" on page 7-45.)
Must be the same as the value specified in the
ter's register.
TCB DP
Sets interrupt
1 – Interrupts the core once the complete block is transferred.
Irrelevant when bit is set in the transmitter's
INT
Sets transfer mode
1 – Transfers each data item per request.
Irrelevant when bit is set in transmitter's
DRQ
Sets chaining mode
1 – Enables chaining.
Irrelevant when the
CHEN
Defines register to be loaded; must be channel 0.
TCB
Chaining pointer – relevant when chaining is enabled.
ADSP-TS101 TigerSHARC Processor
register; otherwise irrelevant.
DP
DY
LEN
TCB DP
TCB DP
bit is set in the transmitter's
Hardware Reference
bit is set
2DDMA
register becomes rele-
field of the transmit-
register.
register.
register.
TCB DP