牛津半导体有限公司

OX16C954 REV B

14.5 TTL时钟模式........................................................................................................................................................................36

14.6外部1X时钟Mode...........................................................................................................................................................36

14.7晶体振荡器电路.........................................................................................................................................................36

15附加功能................................................................................................................................................................37

15.1附加状态寄存器‘ASR’...........................................................................................................................................37

15.2 FIFO填充水平“ TFL & RFL’.....................................................................................................................................................37

15.3其他控制寄存器‘ACR’.........................................................................................................................................37

15.4变送器触发电平‘TTL’..............................................................................................................................................39

15.5接收中断。触发电平‘RTL’.................................................................................................................................39

15.6流量控制水平'集装箱' & ' FCH ' ........................................................................................................................................39

15.7设备标识寄存器..............................................................................................................................................39

15.8时钟选择寄存器‘CKS’....................................................................................................................................................40

15.9九位模式寄存器‘NMR’.................................................................................................................................................40

15.10

现代禁用面具“ MDM ” ..............................................................................................................................................41

15.11

读FCR “ RFC ” ............................................................................................................................................................41

15.12

良好的数据状态寄存器“ GDS ” .......................................................................................................................................41

15.13

DMA状态寄存器‘DMS’................................................................................................................................................42

15.14

端口索引寄存器‘PIX’.....................................................................................................................................................42

15.15

时钟变更注册“ CKA ” ........................................................................................................................................42

16工作CONDITIONS..............................................................................................................................................................43

17 DC电气特性.........................................................................................................................................44

17.1 5V Operation..............................................................................................................................................................................44

17.2 3.3V Operation...........................................................................................................................................................................45

18 AC电气特性.........................................................................................................................................46

18.1 5V Operation..............................................................................................................................................................................46

18.2 3.3V Operation...........................................................................................................................................................................47

19 TIMING WAVEFORMS......................................................................................................................................................................48

20封装INFORMATION...............................................................................................................................................................50

21订购INFORMATION.............................................................................................................................................................52

注......................................................................................................................................................................................................53

联系我们DETAILS................................................................................................................................................................................54

数据表修订版1.0

第4页