参数资料
型号: PC9RS08KA2PAE
厂商: Freescale Semiconductor
文件页数: 122/136页
文件大小: 0K
描述: MCU 8BIT 2KB FLASH RS08 8-DIP
标准包装: 50
系列: RS08
核心处理器: RS08
芯体尺寸: 8-位
速度: 10MHz
外围设备: LVD,POR,WDT
输入/输出数: 4
程序存储器容量: 2KB(2K x 8)
程序存储器类型: 闪存
RAM 容量: 63 x 8
电压 - 电源 (Vcc/Vdd): 1.8 V ~ 5.5 V
振荡器型: 内部
工作温度: 0°C ~ 70°C
封装/外壳: 8-DIP(0.300",7.62mm)
包装: 管件
配用: DEMO9RS08KA2-ND - DEMO BOARD FOR 9RS08KA2
Analog Comparator (RS08ACMPV1)
MC9RS08KA2 Series Data Sheet, Rev. 4
86
Freescale Semiconductor
10.2
External Signal Description
The ACMP has two analog input pins, ACMP+ and ACMP–, and one digital output pin, ACMPO. Each
of the input pins can accept an input voltage that varies across the full operating voltage range of the MCU.
As shown in Figure 10-2, the ACMP– pin is connected to the inverting input of the comparator, and the
ACMP+ pin is connected to the non-inverting input of the comparator if ACBGS=0. As shown in
Figure 10-2, the ACMPO pin can be enabled to drive an external pin.
The signal properties of ACMP are shown in Table 10-1.
10.3
Register Definition
The ACMP includes one register:
An 8-bit status and control register
Refer to the direct-page register summary in the memory chapter of this data sheet for the absolute address
assignments for all ACMP registers.
10.3.1
ACMP Status and Control Register (ACMPSC)
ACMPSC contains the status flag and control bits which are used to enable and configure the ACMP.
Table 10-1. Signal Properties
Signal
Function
I/O
ACMP-
Inverting analog input to the ACMP
(Minus input)
I
ACMP+
Non-inverting analog input to the ACMP
(Positive input)
I
ACMPO
Digital output of the ACMP
O
765
43
210
R
ACME
ACBGS
ACF
ACIE
ACO
ACOPE
ACMOD
W
Reset:
00
000
0
= Unimplemented
Figure 10-3. ACMP Status and Control Register (ACMPSC)
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