参数资料
型号: UPD78F0545GC(T2)-UBT-A
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP80
封装: 14 X 14 MM, LEAD FREE, PLASTIC, LQFP-80
文件页数: 61/96页
文件大小: 4109K
代理商: UPD78F0545GC(T2)-UBT-A
Preliminary Product Information U14673EJ1V0PM00
64
PD789322,789324,789326,789327
(5) Key return mode register 00 (KRM00)
This register is used to set the pin that is to detect the key return signal (rising edge of port 4).
KRM00 is set using a 1-bit or 8-bit memory manipulation instruction.
RESET input sets this register to 00H.
Figure 6-6. Format of Key Return Mode Register 00
Symbol
7
6
5
4
3
2
1
0
Address
After reset
R/W
KRM00
0
KRM000
FFF5H
00H
R/W
KRM000
Key return signal detection control
0
Key return signal not detected
1
Key return signal detected (port 4 falling edge detection)
Cautions 1. Always set bits 1 to 7 to 0.
2. Before setting KRM00, set (1) bit 6 (KRMK00) of MK0 to disable interrupts. To enable
interrupts, clear (0) KRMK00 after clearing (0) bit 6 (KRIF00) of IF0.
3. On-chip pull-up resistors are automatically connected in input mode to the pins specified
for key return signal detection (P40 to P43). Although these resistors are disconnected
when the mode changes to output, key return signal detection continues unchanged.
Figure 6-7. Block Diagram of Falling Edge Detection Circuit
Falling edge
detection circuit
KRMK00
KRIF00 setting signal
Standby release signal
Key return mode register 00
(KRM00)
Note
Selector
P40/KR00
P41/KR01
P42/KR02
P43/KR03
Note For selecting the pin to be used as falling edge input.
相关PDF资料
PDF描述
UPD78F0547GC(T)-UBT-A 8-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP80
UPD78F0562MC-CAA-AX 8-BIT, FLASH, 10 MHz, MICROCONTROLLER, PDSO20
UPD78F0893GK(A)-GAK-AX 8-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP80
UPD78F1005GB-GAG-AX 16-BIT, FLASH, 8 MHz, RISC MICROCONTROLLER, PQFP52
UPD78F1146AGB-GAH-AX 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP64
相关代理商/技术参数
参数描述
UPD78F0545GC-UBT-A 制造商:Renesas Electronics Corporation 功能描述:
UPD78F0545GK(T)-8EU-A 制造商:NEC Electronics Corporation 功能描述:8BIT MCU 60K FLASH 3KB RAM LQFP 制造商:Renesas 功能描述:MCU 8-Bit 78K0 CISC 60KB Flash 2.5V/3.3V/5V 80-Pin LQFP
UPD78F0546AGC-GAD-AX 功能描述:MCU 8BIT 80-LQFP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器, 系列:78K0/Kx2 标准包装:250 系列:80C 核心处理器:8051 芯体尺寸:8-位 速度:16MHz 连通性:EBI/EMI,I²C,UART/USART 外围设备:POR,PWM,WDT 输入/输出数:40 程序存储器容量:- 程序存储器类型:ROMless EEPROM 大小:- RAM 容量:256 x 8 电压 - 电源 (Vcc/Vdd):4.5 V ~ 5.5 V 数据转换器:A/D 8x10b 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:68-LCC(J 形引线) 包装:带卷 (TR)
UPD78F0546AGK-GAK-AX 功能描述:MCU 8BIT 80-LQFP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器, 系列:78K0/Kx2 标准包装:300 系列:78K0R/Ix3 核心处理器:78K/0R 芯体尺寸:16-位 速度:40MHz 连通性:3 线 SIO,I²C,LIN,UART/USART 外围设备:DMA,LVD,POR,PWM,WDT 输入/输出数:27 程序存储器容量:16KB(16K x 8) 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:1K x 8 电压 - 电源 (Vcc/Vdd):2.7 V ~ 5.5 V 数据转换器:A/D 8x10b 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:38-SSOP 包装:托盘
UPD78F0546GK-8EU-A 制造商:Renesas Electronics Corporation 功能描述: