參數(shù)資料
型號(hào)： ZPSD503B1
英文描述： Field Programmable Microcontroller Peripherals(可編程邏輯，零功耗，16K位SRAM,40個(gè)可編程I/O,通用PLD有61個(gè)輸入)
中文描述： 現(xiàn)場可編程微控制器外圍設(shè)備（可編程邏輯，零功耗，16K的位的SRAM，40余個(gè)可編程輸入/輸出，通用PLD的有61個(gè)輸入）
文件頁數(shù)： 30/142頁
文件大小： 786K
代理商： ZPSD503B1
ZPSD5XX Famly
7-30
ZPSD5XX Interface To Non-Multiplexed Bus
Figure 16 shows a ZPSD5XX interfacing to a microcontroller with a non-multiplexed
address/data bus. The address bus is connected to the ADIO Port, and the data bus is
connected to Port C and/or Port D, depending on the bus width. There is no need for the
ADIO Port to latch the address internally, but the user is offered the option to do so in the
ZPSD5XX PSDsoft Software. The data ports are in tri-state mode when the ZPSD5XX is
not accessed by the microcontroller.
Bus
Interface
(Cont.)
Data Byte Enable
Microcontrollers have different data byte orientations with regard to the data bus. The
following tables show how the ZPSD5XX handles the byte enable under different bus
configurations. Even byte refers to locations with address A0 equal to “0”, and odd byte as
locations with A0 equal to “1”.
BHE
A0
D7 DD0
X
0
Even Byte
X
1
Odd Byte
Table 6. 8-Bit Data Bus
Table 7. 16-Bit Data Bus With BHE
BHE
A0
D15 DD8
D7 DD0
0
0
Odd byte
Even byte
0
1
Odd byte
–
1
0
–
Even byte
WRH
WRL
D15 DD8
D7 DD0
0
0
Odd byte
Even byte
0
1
Odd byte
–
1
0
–
Even byte
Table 8. 16-Bit Data Bus With WRHand WRL
SIZ0
A0
D15 DD8
D7 DD0
0
0
Even byte
Odd byte
1
0
Even byte
–
1
1
–
Odd byte
Table 9. 16-Bit Data Bus With SIZ0, A0
LDS
UDS (A0)
D15 DD8
D7 DD0
0
0
Even byte
Odd byte
1
0
Even byte
–
0
1
–
Odd byte
Table 10. 16-Bit Data Bus With UDS, LDS
相關(guān)PDF資料
PDF描述
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ZPSD602(V)E1 Field Programmable Microcontroller Peripherals with Embedded Micro--Cell(可編程邏輯，零功耗，4K位SRAM,26個(gè)可編程I/O,通用PLD有63個(gè)輸入)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ZPSD503B1-C-15L 制造商:WSI 功能描述:
ZPSD512B1-C-90UI 制造商:WSI 功能描述:
ZPSD513B1-C-15L 制造商:WSI 功能描述:
ZPSD602E1-15L 制造商:WSI 功能描述:
ZPSD611E1-15J 制造商:WSI 功能描述:
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