W83877ATG Nuvoton Technology Corporation of America, W83877ATG Datasheet - Page 39

• Manufacturer Part Number: W83877ATG
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83877ATG

• Lead Free Status / RoHS Status: Supplier Unconfirmed

S/W RESET (Bit 7):
This bit is the software reset bit.
POWER-DOWN (Bit 6):
0
1
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.
0
0
0
1
1
1
2
0
1
PRECOM
1
0
0
1
0
1
1
FDC in normal mode
FDC in power-down mode
DATA RATE
1
0
250 KB/S
300 KB/S
500 KB/S
1 MB/S
2 MB/S
0
1
1
1
0
0
1
0
0
7
0.00 nS (disabled)
Default Delays
6
250K - 1Mbps
125.00 nS
166.67 nS
208.33 nS
250.00 nS
41.67 nS
83.34 nS
5
0
4
3
DEFAULT PRECOMPENSATION DELAYS
- 32 -
PRECOMPENSATION DELAY
2
1
W83877ATF/W83877ATG
0
41.67 nS
DRATE0
DRATE1
PRECOMP0
PRECOMP1
PRECOMP2
POWER DOWN
S/W RESET
20.8 nS
125 nS
125 nS
125 nS
2 Mbps Tape drive
0.00nS (disabled)
Default Delays
125.00nS
41.17nS
104.2nS
20.8nS
62.5nS
83.3nS