參數(shù)資料
型號(hào): W83977TF(EOL)
英文描述: W83877TF plus KBC. CIR. RTC
中文描述: W83877TF加比聯(lián)。稅務(wù)局局長。時(shí)鐘
文件頁數(shù): 48/161頁
文件大小: 592K
代理商: W83977TF(EOL)
W83977EF/ CTF
PRELIMINARY
Publication Release Date: March 1999
-39 -
Revision A1
1
2
3
4
5
6
7
0
DRATE0
DRATE1
PRECOMP0
PRECOMP1
PRECOMP2
POWER DOWN
S/W RESET
0
S/W RESET (Bit 7):
This bit is the software reset bit.
POWER-DOWN (Bit 6):
0 FDC in normal mode
1 FDC in power-down mode
PRECOMP2 PRECOMP1 PRECOMP0 (Bit 4, 3, 2):
These three bits select the value of write precompensation. The following tables show the
precompensation values for the combination of these bits.
PRECOMP
2 1 0
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
PRECOMPENSATION DELAY
250K - 1 Mbps
Default Delays
41.67 nS
83.34 nS
125.00 nS
166.67 nS
208.33 nS
250.00 nS
0.00 nS (disabled)
2 Mbps Tape drive
Default Delays
20.8 nS
41.17 nS
62.5nS
83.3 nS
104.2 nS
125.00 nS
0.00 nS (disabled)
DATA RATE
250 KB/S
300 KB/S
500 KB/S
1 MB/S
2 MB/S
DEFAULT PRECOMPENSATION DELAYS
125 nS
125 nS
125 nS
41.67nS
20.8 nS
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