peb20532 Infineon Technologies Corporation, peb20532 Datasheet - Page 239

• Manufacturer Part Number: peb20532
• Description: 2 Channel Serial Optimized Communication Controller
• Manufacturer: Infineon Technologies Corporation

Data Sheet
RE
DRMBS
RMBS(11:0) Receive Maximum Buffer Size
Receive DMA Enable
Only valid if external DMA controller support is enabled.
Self-clearing command bit:
RE=’0’
RE=’1’
Disable Receive Maximum Buffer Size (RMBS) Check
Only valid if external DMA controller support is enabled.
DRMBS=’0’
DRMBS=’1’
Only valid if external DMA controller support is enabled.
The size of the receive buffer in host memory can be set up in this bit field
to ensure that request for DMA transfers are inhibited when the
maximum buffer size is reached. An RBF interrupt is generated (if
unmasked) to inform the CPU. If the external DMA controller supports
this function, it can be disabled by setting bit ’DRMBS’ to ’1’.
The DMA controller is not set up to forward receive data
into a buffer in memory.
Setting this bit to ’1’ enables the DMA support logic to
request the external DMA controller to transfer receive
data when available in RFIFO.
Evaluation of bit field RMBS(11:0) is enabled.
Evaluation of bit field RMBS(11:0) is disabled.
239
Register Description
PEB 20532
PEF 20532
2000-09-14