參數資料
型號： ZPSD611(V)E1
英文描述： Field Programmable Microcontroller Peripherals with Embedded Micro--Cell(可編程邏輯，零功耗，4K位SRAM,26個可編程I/O,通用PLD有63個輸入)
中文描述： 現場可編程微控制器外圍設備和嵌入式微-細胞（可編程邏輯，零功耗，4K的位的SRAM，26余個可編程輸入/輸出，通用PLD的有63個輸入）
文件頁數： 46/98頁
文件大?。?/td> 484K
代理商： ZPSD611(V)E1
ZPSD6XX(V) Family
12-46
I/O Ports
(cont.)
Port Registers
(cont.)
Drive Register
The Drive Register configures the pin driver as Open Drain, or in the case of ECSPLD
outputs, sets the pin to operate in high slew rate. An external pull-up resistor is not required
when the pin is in the slew rate mode.
For Ports A and B the register sets different functions for the lower and higher nibbles. The
four upper bits set the corresponding bits as CMOS (“0”) or Open Drain (“1”) driver. The
four lower bits are used for slew rate control. The slew rate is a measurement of the rise
and fall times of the output. A higher slew rate means a faster output response while a lower
slew rate is a slower, lower slope, response. The pin operates in high slew rate when the
corresponding bit in the Drive Register is set to “1”.
Table 25 shows the Drive Registers of Port A, B, C and D and which pin has the Open Drain
or Slew Rate configuration.
Drive
Register
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Port A
Open
Drain
Open
Drain
Open
Drain
Open
Drain
Slew
Rate
Slew
Rate
Slew
Rate
Slew
Rate
Port B
Open
Drain
Open
Drain
Open
Drain
Open
Drain
Slew
Rate
Slew
Rate
Slew
Rate
Slew
Rate
Port C
Open
Drain
Open
Drain
Open
Drain
Open
Drain
Open
Drain
NA
Open
Drain
Open
Drain
Port D
NA
NA
NA
NA
NA
Slew
Rate
Slew
Rate
Slew
Rate
Table 25. Drive Register Pin Assignment
NOTE:
NA = Not Applicable, bit should set to “0”.
相關PDF資料
PDF描述
ZPSD612(V)E1 Field Programmable Microcontroller Peripherals with Embedded Micro--Cell(可編程邏輯，零功耗，4K位SRAM,26個可編程I/O,通用PLD有63個輸入)
ZPSD613(V)E1 Field Programmable Microcontroller Peripherals with Embedded Micro--Cell(可編程邏輯，零功耗，4K位SRAM,26個可編程I/O,通用PLD有63個輸入)
ZPSD813F1V Flash In System Programmable Mirocomputer Peripherals(閃速，在系統(tǒng)可編程微控制器外圍器件，1M位閃速存儲器，256K位EEPROM，16K位SRAM)
ZR33771GC-40 Cell Rectifier Diodes
ZR33771GM-20 Cell Rectifier Diodes
相關代理商/技術參數
參數描述
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ZPSD612E1V-20L 制造商:WSI 功能描述:
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