ibm3206k0424 ETC-unknow, ibm3206k0424 Datasheet - Page 182

• Manufacturer Part Number: ibm3206k0424
• Description: Ibm Processor For Network Resources
• Manufacturer: ETC-unknow

IBM3206K0424
IBM Processor for Network Resources
4.10: GPDMA Read DMA Byte Count
This register counts the bytes transferred into the IBM3206K0424 by the DMA controller. Descriptor bytes
can optionally be included. (See the GPDMA Control Register on page 177 for details.)
Length
Type
Address
Power on Value
Restrictions
4.11: GPDMA Write DMA Byte Count
This register counts the bytes transferred out of the IBM3206K0424 by the DMA controller.
Length
Type
Address
Power on Value
Restrictions
4.12: GPDMA Array Read Address
This register is used to read the GPDMA internal array. The internal array is used to hold data for the DMA.
The array is organized as 64 32-bit words. The GPDMA Array Read Address is written with the address of the
word that is to be read. The GPDMA Array Data Register is read to obtain the contents of the addressed
word. The GPDMA Array Read Address is incremented each time the GPDMA Array Data Register is read,
causing repeated reads of the GPDMA Array Data Register to obtain sequential words from the array.
Length
Type
Address
Power on Value
Restrictions
General Purpose DMA (GPDMA)
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32 bits
Read/Write
XXXX 0178
X’00000000’
None
32 bits
Read/Write
XXXX 017C
X’00000000’
None
8
Read/Write
XXXX 0140
X’00’
This address space is for diagnostic use only. It should not be read or written during
normal operation. The low order two bits of GPDMA Array Read Address are place
holders and are ignored. They should be set to ‘0’.
bits
pnr25.chapt04.01
August 14, 2000
Preliminary