參數(shù)資料
型號: CDK8920A
廠商: Cirrus Logic, Inc.
英文描述: CRYSTAL LAN ISA PLUG-AND-PLAY ETHERNET CONTROLLER
中文描述: 水晶藍的ISA即插即用,即插即用以太網(wǎng)控制器
文件頁數(shù): 58/144頁
文件大?。?/td> 1229K
代理商: CDK8920A
Register B: Buffer Configuration (BufCFG) continued
BIT
D
NAME
MissOvfloiE
DESCRIPTION
If MissOvfloiE is set, there is an interrupt when the RxMISS counter increments from
1FFh to 200h. (A receive miss is said to have occurred if packets are lost due to slow
movement of receive data out of the receive buffers. When this happens, the RxMiss bit
(Register C, BufEvent, Bit A) is set, and the RxMISS counter (Register 10) is
incremented.)
F
RxDestiE
When set, there is an interrupt when a receive frame passes the Destination Address
filter criteria defined in the RxCTL register (Register 5). This bit provides an early
indication of an incoming frame. It is earlier than Rx128 (Register C, BufEvent, Bit B).
Do not set this bit when StreamTransfer mode is enabled.
If RxDestiE is set, the BufEvent could be RxDest or Rx128. After 128 bytes are
received, the BufEvent changes from RxDest to Rx128.
After reset, if no EEPROM is found by the CS8920A, the register has the following initial state after reset. If an
EEPROM is found, the register’s initial value may be set by the EEPROM. See Section 3.3.
0000 0000
0000 1011
CS8920A
58
DS238PP2
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