參數(shù)資料
型號(hào): MC68LC040RC33A
廠商: Freescale Semiconductor
文件頁(yè)數(shù): 69/442頁(yè)
文件大?。?/td> 0K
描述: IC MPU 32BIT 33MHZ 179-PGA
標(biāo)準(zhǔn)包裝: 1
系列: M680x0
處理器類型: M680x0 32-位
速度: 33MHz
電壓: 5V
安裝類型: 通孔
封裝/外殼: 179-BPGA
供應(yīng)商設(shè)備封裝: 179-PGA(47.24x47.24)
包裝: 托盤
7- 18
M68040 USER’S MANUAL
MOTOROLA
PRESENT DATA
1) LATCH DATA
2) SAMPLE TBI AND TCI
3) RECOGNIZE TBI ASSERTED
1) REMOVE DATA FROM D31–D0
2) NEGATE TA
TERMINATE CYCLE
1) SET R/W TO READ
2) DRIVE ADDRESS ON A31–A0
3) DRIVE USER PAGE ATTRIBUTES ON UPA1, UPA0
4) DRIVE SIZE ON SIZ1, SIZ0 (LINE)
5) DRIVE TRANSFER TYPE ON TT1, TT0
6) DRIVE TRANSFER MODIFIER ON TM2–TM0
7) CIOUT BECOMES VALID
8) ASSERT TS FOR ONE CLOCK
9) ASSERT TIP
ADDRESS DEVICE
ACQUIRE DATA
START NEXT CYCLE
PROCESSOR
EXTERNAL DEVICE
1) DECODE ADDRESS
2) PLACE DATA ON D31–D0
3) ASSERT TA AND TBI
1) NEGATE TIP (IF REQUIRED)
END OF LINE TRANSFER
1) INCREMENT ADDRESS BITS A3, A2 AND DRIVE
NEW ADDRESS ON A31–A0
2) DRIVE SIZE ON SIZ1, SIZ0 (LONG WORD)
3) ASSERT TRANSFER START (TS) FOR ONE CLOCK
ADDRESS DEVICE
PRESENT DATA
1) REMOVE DATA FROM D31–D0
2) NEGATE TA
TERMINATE CYCLE
1) DECODE ADDRESS
2) PLACE DATA ON D31–D0
3) ASSERT TA
1) LATCH DATA
ACQUIRE DATA
WHEN THREE LONG WORDS
TRANSFERRED
UNTIL THREE LONG WORDS
TRANSFERRED
Figure 7-12. Burst-Inhibited Line Read Transfer Flowchart
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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