AM79C978A AMD [Advanced Micro Devices], AM79C978A Datasheet - Page 220

• Manufacturer Part Number: AM79C978A
• Description: Single-Chip 1/10 Mbps PCI Home Networking Controller
• Manufacturer: AMD [Advanced Micro Devices]

SWITCHING CHARACTERISTICS: BUS INTERFACE (Continued)
Notes:
1. Not tested; parameter guaranteed by design characterization.
2. Parameter value is given for automatic EEPROM read operation. When EEPROM port (BCR19) is used to access the
220
EEPROM Timing
f
t
t
t
t
t
t
t
JTAG (IEEE 1149.1) Test Signal Timing
t
t
t
t
t
t
t
t
t
t
t
t
t
t
EESK
HIGH
LOW
VAL
VAL
LOW
SU
H
J1
J2
J3
J4
J5
J6
J7
J8
J9
J10
J11
J12
J13
J14
Parameter
(EEDO)
EEPROM, software is responsible for meeting EEPROM timing requirements.
Symbol
(EEDO)
(EEDI)
(EECS)
(EECS)
(EESK)
(EESK)
EESK Frequency
EESK High Time
EESK Low Time
EEDI Valid Output Delay from EESK (Note 2)
EECS Valid Output Delay from EESK (Note 2)
EECS Low Time
EEDO Setup Time to EESK
EEDO Hold Time from EESK
TCK Frequency
TCK Period
TCK High Time
TCK Low Time
TCK Rise Time
TCK Fall Time
TDI, TMS Setup Time
TDI, TMS Hold Time
TDO Valid Delay
TDO Float Delay
All Outputs (Non-Test) Valid Delay
All Outputs (Non-Test) Float Delay
All Inputs (Non-Test)) Setup Time
All Inputs (Non-Test) Hold Time
Parameter Name
(Note 2)
(Note 2)
(Note 2)
@ 2.0 V
@ 0.8 V
Am79C978A
Test Condition
1550
Min
780
780
100
-15
-15
50
45
45
10
0
8
3
3
8
7
Max
650
15
15
10
30
50
25
36
4
4
MHz
Unit
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns