參數(shù)資料
型號(hào): SMJ34020AHT
廠商: Texas Instruments, Inc.
英文描述: GRAPHICS SYSTEM PROCESSOR
中文描述: 圖形系統(tǒng)處理器
文件頁(yè)數(shù): 24/92頁(yè)
文件大小: 1458K
代理商: SMJ34020AHT
SMJ34020A
GRAPHICS SYSTEMPROCESSOR
SGUS011B – APRIL 1991 – REVISED AUGUST 1995
24
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
cycle timing examples (continued)
BUSFLT
(see Note B)
LRDY
(see Note B)
DDIN
SF
RCA
CAMD
LCLK2
LCLK1
GI
ALTCH
RAS
CAS
WE
TR/QE
DDOUT
PGMD
(see Note B)
SIZE16
(see Note B)
Q4
Q1
Q2
Q3
Q1
Q2
Q3
Q4
Q1
Q2
Q3
Q4
Q1
Address
Row
1st Column
2nd Column
Address Subcycle
Data Transfer
Subcycle
Data Transfer
Subcycle
Data
Data
R0
R1
Standard Memory Read Cycle
Page-Mode Read
LAD (SMJ34020A)
(see Note A)
LAD (Memory)
(see Note A)
Q4
See clock stretch, page 20.
NOTES: A. LAD (SMJ34020A): Output to LAD by the SMJ34020A
LAD (memory): Output to LAD by the memory.
B. LRDY, PGMD, SIZE16, and BUSFLT are not sampled on subsequent page-mode cycle accesses to
32-bit-wide memory space.
Figure 2. Local-Memory Read-Cycle Timing (with page mode)
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