AN2008 Motorola / Freescale Semiconductor, AN2008 Datasheet - Page 11

• Manufacturer Part Number: AN2008
• Description: Evaluating ColdFire in a 68K Target System: MCF5307 to MC68EC020 Gateway Reference Design
• Manufacturer: Motorola / Freescale Semiconductor

Appendix B
PALASM Control Equations for PAL U11
TITLE
PATTERN
REVISION
DATE
AUTHOR
COMPANY
CHIP
PIN
PIN
PIN
PIN
PIN
PIN
PIN
PIN
PIN
PIN
PIN
PIN
PIN
PIN
PIN
PIN
PIN
PIN
PIN
PIN
EQUATIONS
SIZ1 = DSACK1 * /DSACK0 * /BD
SIZ1.TRST = VCC
SIZ0 = /DSACK1 * DSACK0 * /BD
SIZ0.TRST = VCC
TA = (DSACK0 + DSACK1) * BD
SPARE1 = (DSACK0 + DSACK1)
TA = VCC
TA.TRST = SPARE1
U11
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
PALCE16V8
CLK
/DSACK0
/DSACK1
/CS0
/CS1
/CS2
/CS3
/CS4
/CS5
GND
NC
/CS6
/CS7
SPARE1
NC
SIZ1
SIZ0
/TA
/BD
VCC
MCF5307 to MC68EC020 Gateway Reference Design
U11_TA_BUS_SIZING
P00002
1
5th March 1998
Pete Highton
Motorola SPS (c) 1998
COMBINATORIAL
COMBINATORIAL ; Input
COMBINATORIAL ; Input
COMBINATORIAL ; Input
COMBINATORIAL ; Input
COMBINATORIAL ; Input
COMBINATORIAL ; Input
COMBINATORIAL ; Input
COMBINATORIAL ; Input
COMBINATORIAL ; Input
COMBINATORIAL ; Input
COMBINATORIAL ; Output
COMBINATORIAL ; Output
COMBINATORIAL ; Output
COMBINATORIAL ; Input
; Asserted for word transfer and not bus
; master.
; Asserted for byte transfer and not bus
; master.
; TA generated if either DSACKx signal
; asserts while bus master.
PALASM Control Equations for PAL U11
; Input
11