参数资料
型号: SCD223110QCD
厂商: INTEL CORP
元件分类: 微控制器/微处理器
英文描述: 2 CHANNEL(S), 256K bps, SERIAL COMM CONTROLLER, PQFP100
封装: METRIC, QFP-100
文件页数: 50/178页
文件大小: 2247K
代理商: SCD223110QCD
Intelligent Two-Channel LAN and WAN Communications Controller — CD2231
Datasheet
143
8.6.4.5
A Buffer Receive Byte Count (ARBCNT)
8.6.4.6
B Buffer Receive Byte Count (BRBCNT)
These registers contain the number of bytes stored in the external data buffers by the CD2231. The
count is updated after a block of data is moved to memory and the buffer is terminated. As initially
written by the host, the register contains the number of bytes the buffer can hold.
8.6.4.7
A Receive Buffer Status (ARBSTS)
Register Name: ARBCNT
Register Description: Receive Buffer ‘A’ Byte Count
Default Value: x’0000
Access: Word Read/Write
Intel Hex Address: x’48
Motorola Hex Address: x’4A
Bit 15
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
Binary Count Value, 16-bit count, bits 15:8
Bit 7
Bit 6Bit 5Bit 4Bit 3Bit 2Bit 1Bit 0
Binary Count Value, 16-bit count, bits 7:0
Register Name: BRBCNT
Register Description: Receive Buffer ‘B’ Byte Count
Default Value: x’0000
Access: Word Read/Write
Intel Hex Address: x’4A
Motorola Hex Address: x’48
Bit 15
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
Binary Count Value, 16-bit Count, bits 15:8
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Binary Count Value, 16-bit count, bits 7:0
Register Name: ARBSTS
Register Description: Receive Buffer ‘A’ Status
Default Value: x’00
Access: Byte Read/Write
Intel Hex Address: x’4C
Motorola Hex Address: x’4F
Bit 7
Bit 6Bit 5Bit 4Bit 3Bit 2Bit 1Bit 0
Berr
EOF
EOB
0000
2231own
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