AX88140AP ETC, AX88140AP Datasheet - Page 41

• Manufacturer Part Number: AX88140AP
• Description: Fast Ethernet MAC Controller
• Manufacturer: ETC

A.1 Boot ROM read cycle
ASIX 88140 Boot ROM Byte Read Cycle
br_ad<7:0>
br_a1
br_a0
brce#
DEC 21140 Boot ROM Byte Read Cycle:
br_ad<7:0>
br_a1
br_a0
brce#
B R A 1
G N D
B R A 1
BRAD0
BRAD1
BRAD2
BRAD3
BRAD4
BRAD5
BRAD6
BRAD7
G N D
B R A D 0
B R A D 1
B R A D 2
B R A D 3
B R A D 4
B R A D 5
B R A D 6
B R A D 7
AX88140A
D0
D1
D2
D3
D4
D5
D6
D7
O C
C L K
74LS374
D0
D1
D2
D3
D4
D5
D6
D7
O C
C L K
74LS374
address 9-2
address 7-2
address 17
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
APPENDIX
A 1 0
A 1 1
A 1 2
A 1 3
A 1 4
A 1 5
G N D
A 8
A 9
A 1 0
A 1 1
A 1 2
A 1 3
A 1 4
A 1 5
A 1 6
A 1 7
G N D
D0
D1
D2
D3
D4
D5
D6
D7
O C
C L K
address 17-10
74LS374
address 15-8
address16
D0
D1
D2
D3
D4
D5
D6
D7
O C
C L K
74LS374
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
/ W E
/ O E
A 2
A 3
A 4
A 5
A 6
A 7
address 1
address 1
address 0
41
A
address 0
A 2
A 3
A 4
A 5
A 6
A 7
A 8
A 9
H/W NOTE
data
data
BR_CE
/ O E
B R A 0
B R A 1
A 1 0
A 1 1
A 1 2
A 1 3
A 1 4
A 1 5
A 2
A 3
A 4
A 5
A 6
A 7
A 8
A 9
ASIX ELECTRONICS CORPORATION
B R _ C E
G N D
B R A 0
B R A 1
A 1 0
A 1 1
A 1 2
A 1 3
A 1 4
A 1 5
A 2
A 3
A 4
A 5
A 6
A 7
A 8
A 9
A0
A1
A2
A3
A4
A5
A6
A7
A 8
A 9
A 1 0
A 1 1
A 1 2
A 1 3
A 1 4
A 1 5
/CE
/ O E
27512
A0
A1
A2
A3
A4
A5
A6
A7
A 8
A 9
A 1 0
A 1 1
A 1 2
A 1 3
A 1 4
A 1 5
/ C E
/ O E
2 7 5 1 2
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
PRELIMINARY
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
BRAD0
BRAD1
BRAD2
BRAD3
BRAD4
BRAD5
BRAD6
BRAD7
B R A D 0
B R A D 1
B R A D 2
B R A D 3
B R A D 4
B R A D 5
B R A D 6
B R A D 7