参数资料
型号: PCA9671D,112
厂商: NXP Semiconductors
文件页数: 17/33页
文件大小: 0K
描述: IC I/O EXPANDER I2C 16B 24SOIC
标准包装: 1,200
接口: I²C
输入/输出数: 16
中断输出:
频率 - 时钟: 1MHz
电源电压: 2.3 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 24-SOIC(0.295",7.50mm 宽)
供应商设备封装: 24-SO
包装: 管件
包括: POR
其它名称: 935283551112
PCA9671D
PCA9671D-ND
PIC16(L)F1526/27
DS41458A-page 24
Preliminary
2011 Microchip Technology Inc.
3.2.2
SPECIAL FUNCTION REGISTER
The Special Function Registers are registers used by
the application to control the desired operation of
peripheral functions in the device. The Special Function
Registers occupy the 20 bytes after the core registers of
every data memory bank (addresses x0Ch/x8Ch
through x1Fh/x9Fh). The registers associated with the
operation of the peripherals are described in the
appropriate peripheral chapter of this data sheet.
3.2.3
GENERAL PURPOSE RAM
There are up to 80 bytes of GPR in each data memory
bank. The Special Function Registers occupy the 20
bytes after the core registers of every data memory
bank (addresses x0Ch/x8Ch through x1Fh/x9Fh).
3.2.3.1
Linear Access to GPR
The general purpose RAM can be accessed in a
non-banked method via the FSRs. This can simplify
access to large memory structures. See Section 3.5.2
for more information.
3.2.4
COMMON RAM
There are 16 bytes of common RAM accessible from all
banks.
FIGURE 3-3:
BANKED MEMORY
PARTITIONING
3.2.5
DEVICE MEMORY MAPS
The memory maps for PIC16(L)F1526/27 is shown in
0Bh
0Ch
1Fh
20h
6Fh
70h
7Fh
00h
Common RAM
(16 bytes)
General Purpose RAM
(80 bytes maximum)
Core Registers
(12 bytes)
Special Function Registers
(20 bytes maximum)
Memory Region
7-bit Bank Offset
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