參數(shù)資料
型號(hào): ZPSD401A1
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37個(gè)輸入)
中文描述: 現(xiàn)場(chǎng)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37個(gè)輸入)
文件頁(yè)數(shù): 75/108頁(yè)
文件大?。?/td> 626K
代理商: ZPSD401A1
ZPSD4XX Famly
5-75
System
Configuration
(Cont.)
Register Name
Register Function
Data In
This Register is used to read the input on the port pins.
Control
A
0
sets the corresponding port pin in Address Out Mode.
A
1
sets the pin in MCU I/O Mode.
Data Out
Holds the output data in the MCU I/O Mode.
This register is used to control the data flow in the I/O ports.
A
0
sets the corresponding pin as an input pin.
A
1
sets the pin as an output pin.
Direction
Open Drain
A
0
sets the corresponding pin driver as a CMOS driver.
A
1
sets the pin driver as an Open Drain Driver.
PLD – I/O
A read only status register; a
1
indicates the corresponding pin
is configured as a PLD pin.
Macrocell Out
This register holds the outputs of the GPLD macrocells.
Page Register
A 4-bit register that supports paging.
1. Configures the ZPSD4XX SRAM to be accessed by
PSEN
as program space (8031 design).
2. Enables the Peripheral I/O Mode of Port A.
VM
PMMR0
PMMR1
Power management registers; enables the ZPSD4XX Power Down
Mode and other power saving configurations.
Table 23. Register Function
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