参数资料
型号: UPD78F9212CS-CAB-A
厂商: Renesas Electronics America
文件页数: 142/175页
文件大小: 0K
描述: MCU 8BIT 4KB FLASH 16PIN
标准包装: 400
系列: 78K0S/Kx1+
核心处理器: 78K0S
芯体尺寸: 8-位
速度: 10MHz
外围设备: LVD,POR,PWM,WDT
输入/输出数: 13
程序存储器容量: 4KB(4K x 8)
程序存储器类型: 闪存
RAM 容量: 128 x 8
电压 - 电源 (Vcc/Vdd): 2 V ~ 5.5 V
数据转换器: A/D 4x10b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 16-DIP(0.300",7.62mm)
包装: 托盘
CHAPTER 4 PORT FUNCTIONS
User’s Manual U16994EJ6V0UD
67
Figure 4-7. Block Diagram of P40 to P47
P40 to P47
WRPU
RD
WRPORT
WRPM
PU40 to PU47
PM40 to PM47
VDD
P-ch
PU4
PM4
Internal
bus
Output latch
(
P40 to P47)
Selector
P4
P4:
Port register 4
PU4:
Pull-up resistor option register 4
PM4:
Port mode register 4
RD:
Read signal
WR
××: Write signal
4.3
Registers Controlling Port Functions
The ports are controlled by the following four types of registers.
Port mode registers (PM2 to PM4)
Port registers (P2 to P4)
Port mode control register 2 (PMC2) (μPD78F921x only)
Pull-up resistor option registers (PU2 to PU4)
<R>
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