M68360QUADS-040 Hardware User’s Manual
SUPPORT INFORMATION
68
GLOBAL.SETF = GND
GLOBAL.RSTF = GND
C.5
U32 - Bursting Sram Controller
Title SRAMCONT
Pattern SRAMCNT.pds
Revision PILOT.0
Date 15,8,93
;********************************************************
CHIP SRAMCNT PAL16R4
;*******************************************************************
; This pal serves as a bursting sram controller, for the QUICC040EVB.
; SRMG(1:2) are active-low G (oe) for the sram banks.
; TSC is a delayed TS~
; BAA(1:2) are active-low Burst Address Advance for the srams.
; BAA should be driven to the srams only during burst access and in
; burst write cycle one clock later than in burst read.
; SAS is a one clock delayed AS.
;*******************************************************************
CLK CS3 TS TIP AS SIZ0 SIZ1 TA R_W GND
; 1 2 3 4 5 6 7 8 9 10
OE CS4 NC SAS BAA2 TSC BAA1 SRMG2 SRMG1 VCC
; 11 12 13 14 15 16 17 18 19 20
;********************************************************
EQUATIONS
;**************
/SRMG1 = /CS3 * R_W
SRMG1.TRST = VCC
/SRMG2 = /CS4 * R_W
SRMG2.TRST = VCC
/TSC := /TS
+ /AS * SAS
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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