參數(shù)資料
型號(hào): SCN68652AC2F40
廠商: NXP SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: Multi-protocol communications controller MPCC
中文描述: 1 CHANNEL(S), 2M bps, MULTI PROTOCOL CONTROLLER, CDIP40
封裝: CERAMIC, DIP-40
文件頁(yè)數(shù): 10/28頁(yè)
文件大小: 651K
代理商: SCN68652AC2F40
Philips Semiconductors
Product specification
SCN2652/SCN68652
Multi-protocol communications controller (MPCC)
1995 May 01
10
ASSEMBLE CHARACTER
IN RxSR, STRIP VRC IF
SPECIFIED, ACCUMULATE
CRC IF SPECIFIED
A
INITIALIZE PCSAR, PCR
RxE
= 1
ANY
RECEIVER
STATUS BIT
0
1
PROCESSOR
RxE = 1
NO
SYNC
DETECT
1
IN CCSR
YES
NO
S/F = 1 FOR ONE
RxC BIT TIME
(1) SYNCs ARE ASSEMBLED
(2) OVERRUN (ROVRN) CAUSES
LOSS OF SUBSEQUENT
CHARACTERS
STRIP
SYNC (PCSAR
13
)
= 1
NO
NO
RxSR
RxDB
RxSA = 1
(PROCESSOR SHOULD
READ AND EXAMINE
RDSR
– ROVRN,
RERR (IF VRC
SPECIFIED)
RxDA = 1
(PROCESSOR
SHOULD READ
RxDB)
YES
SYNC
DETECT
2
IN CCSR
NO
SYNC
DETECT IN
CCSR
YES
YES
YES
NO
RxA = 1
YES
RxE
= 0
YES
NO
A
RxE = 0
WHEN LAST
CHARACTER HAS
BEEN SERVICED
NOTES:
1.
Test made every RxC time.
2.
Test made on Rx character boundary.
SD00062
Figure 7. BCP Receive
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