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參數資料
型號: W89C940
廠商: WINBOND ELECTRONICS CORP
英文描述: ELANC-PCI (TWISTED-PAIR ETHER-LAN CONTROLLER WITH PCI INTERFACE)
中文描述: ELANC -的PCI(雙絞線醚局域網控制器帶有PCI接口)
文件頁數: 32/61頁
文件大小: 353K
代理商: W89C940
W89C940
32
TEST MODE SETTING AND DEFINITION
W89C940 provide three test modes they are 90 test mode, TP test mode, and AUI test mode. The system reset
signal is fed into 400ns low glitch eater and the output is RST_I. At 400 nsec RST_I asserted period, the three
pins (EECS,BPCSB,RCSB) output (0,1,1). After RST_I deasserted, the three pins become input pins and
sample at 90nsec. The sampled value (*1,*2,*3) determine the test mode. The timing and test mode type is
shown as following.
400ns low
glitch eater
400ns low
PCI RSTB
RST_I
RST_I
EECS_O
BPCS_O
RCSB_O
EECS_I
BPCSB_I
RCSB_I
0
1
1
Z
Z
Z
Z
Z
Z
Z
z
z
Z
Z
Z
*1
*2
*3
Z
Z
Z
Z
Z
z
0
1
1
Z
Z
Z
EECS_O: EECS pin output driver
EECS_I : EECS pin input forcing
(*1, *2, *3)
= (0,1,1) ---- normal operation mode
= (1,0,0) ---- fast EEPROM mode
= (1,0,1) ---- 90 test mode
= (1,1,0) ---- TP test mode
= (1,1,1) ---- AUI test mode
= (0,0,0) ---- AUI linear mode
FILE 3
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