參數(shù)資料
型號: TMS34020
廠商: Texas Instruments, Inc.
英文描述: GRAPHICS PROCESSORS
中文描述: 圖形處理器
文件頁數(shù): 51/82頁
文件大小: 1359K
代理商: TMS34020
TMS34020, TMS34020A
GRAPHICS PROCESSORS
SPVS004D – MARCH 1990 – REVISED NOVEMBER 1993
51
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
LCLK1
LCLK2
CAMD
RCA
LAD
Q4
Q1
Q2
Q3
Q4
Q1
Q2
Q3
Q4
Q1
LAD
Command
Q2
Q3
Q4*
Q1
SF
DDIN
Data 1
LRDY
BUSFLT
Address
Data 2
2nd Column
1st Column
Row
Q2
Q3
Q4
Q1
Q2
Q3
Q4
Q1
Q2
Q3
Q4
(TMS34020)
Coprocessor)
Status
GI
ALTCH
RAS
CAS
WE
TR/QE
DDOUT
PGMD
SIZE16
R0
R1
Command Cycle
Address
Data Tansfer
Data Transfer
Spacer
*See clock stretch, page 21.
NOTES: A. All coprocessor cycles are implemented as 32-bit operations; therefore, SIZE16 should be high during these cycles.
B. LAD (TMS34020):
Output to the LAD bus by the TMS34020
LAD (coprocessor):
Output to the LAD bus by the coprocessor
Command:
Coprocessor ID, instruction and status code present on LAD
Address:
Memory address for the data transfer, with coprocessor status code
Data n:
Data from the coprocessor (number of values transferred depends on a count in the instruction)
Status:
Optional coprocessor status register output to LAD bus
Figure 28. Transfer Coprocessor Register(s) to Memory (ALTCH High During Data Transfer)
Data transfer from a coprocessor to memory requires an initialization cycle to inform the coprocessor what is
to be transferred and then a memory cycle to perform the actual transfer. The coprocessor can place status
information on the LAD bus during the initialization cycle for the TMS34020. The memory cycle includes a dead
cycle to enable the TMS34020 to take the LAD bus drivers to the high-impedance state before the coprocessor
activates its LAD bus drivers to the memory. Two types of memory-to-coprocessor instructions are supported.
Both provide a count (from 1 to 32) of data to be moved in the instruction. Both also specify a register to be used
as an index into memory. One uses this index register with a post-increment and the other uses it with a
pre-decrement after each transfer cycle.
相關(guān)PDF資料
PDF描述
TMS3450NL LED DUPLEX DIGITAL RADIO CLOCK
TMS3471CFS 780- 】 488-pixel ccd image sensor
TMS3471 2/3-INCH NTSC TIMER
TMS3473 PARALLEL DRIVER
TMS370C036A 8-BIT MICROCONTROLLER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TMS3450NL 制造商:Rochester Electronics LLC 功能描述:- Bulk
TMS3459BNL 制造商:Panasonic Industrial Company 功能描述:IC
TMS3471C 制造商:Rochester Electronics LLC 功能描述:- Bulk
TMS3472ADW 制造商:Rochester Electronics LLC 功能描述:- Bulk
TMS3637D 制造商:Rochester Electronics LLC 功能描述:- Bulk