mpc823rg Freescale Semiconductor, Inc, mpc823rg Datasheet - Page 775

• Manufacturer Part Number: mpc823rg
• Description: Mpc823 Powerquicc Integrated Communications Processor For Portable Systems
• Manufacturer: Freescale Semiconductor, Inc

16.9.22.7 SCCx ETHERNET PARAMETER RAM MEMORY MAP. When a serial
communication controller is configured to operate in Ethernet mode, it overlays the structure
used in Table 16-24 onto the parameters described in Table 16-30.
SCCx Base + 3C
SCCx Base + 4A
SCCx Base + 4C
SCCx Base + 4E
SCCx Base + 5A
SCCx Base + 5C
SCCx Base + 5E
SCCx Base + 6C
SCCx Base + 7A
SCCx Base + 7C
SCCx Base + 7E
SCCx Base + 30
SCCx Base + 34
SCCx Base + 38
SCCx Base + 40
SCCx Base + 44
SCCx Base + 46
SCCx Base + 48
SCCx Base + 50
SCCx Base + 52
SCCx Base + 54
SCCx Base + 56
SCCx Base + 58
SCCx Base + 60
SCCx Base + 64
SCCx Base + 68
SCCx Base + 70
SCCx Base + 72
SCCx Base + 74
SCCx Base + 76
SCCx Base + 78
ADDRESS
Table 16-30. SCCx Ethernet Parameter RAM Memory Map
TBUF0_DATA0
TBUF0_DATA1
TBUF0_RBA0
TBUF0_BCNT
TBUF0_CRC
PADDR1_M*
PADDR1_H*
PADDR1_L*
RFBD_PTR
TFBD_PTR
TLBD_PTR
DMA_CNT
RET_CNT
C_MASK
RET_LIM
GADDR1
GADDR2
GADDR3
GADDR4
C_PRES
MINFLR
CRCEC
MAXD1
MAXD2
MAX_B
P_PER
NAME
DISFC
MAXD
PADS
MFLR
ALEC
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WIDTH
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Word
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Word
Max Buffer Descriptor Byte Count
Maximum Frame Length Register
RX First Buffer Descriptor Pointer
TX First Buffer Descriptor Pointer
TX Last Buffer Descriptor Pointer
Minimum Frame Length Register
Save Area 0–Current Frame
Save Area 1–Current Frame
Short Frame PAD character
Save BCNT–Current Frame
Max DMA1 Length Register
Max DMA2 Length Register
Save CRC–Current Frame
Save RBA–Current Frame
Physical Address 1 (MSB)
Physical Address 1 (LSB)
Constant MASK for CRC
Alignment Error Counter
Discard Frame Counter
Group Address Filter 1
Group Address Filter 2
Group Address Filter 3
Group Address Filter 4
Retry Limit Threshold
Retry Limit Counter
CRC Error Counter
Physical Address 1
RX DMA Counter
Communication Processor Module
DESCRIPTION
RX Max DMA
Preset CRC
Persistence
16-323