PFS122-1J16A 参数 Datasheet PDF下载

型号：	PFS122-1J16A
PDF下载：	下载PDF文件查看货源
内容描述：	[8bit MTP Type MCU with 12-bit R-Type ADC]
分类和应用：
文件页数/大小：	93 页 / 1946 K
品牌：	PADAUK [ PADAUK Technology ]

PFS122

8bit MTP MCU with 12-bit R-Type ADC

5.5.2

Using the comparator

Case I:

Choosing PA3 as minus input and V_{internal R}with (18/32)*V_DDvoltage level as plus input. V_{internal R}is

configured as the above Figure “gpcs[5:4] = 2b’00” and gpcs [3:0] = 4b’1001 (n=9) to have V_{internal R}

(1/4)*V_DD+ [(9+1)/32]*V_DD= [(9+9)/32]*V_DD= (18/32)*V_DD.

gpcs = 0b0_0_00_1001;

gpcc = 0b1_0_0_0_000_0;

padier = 0bxxxx_0_xxx;

// V_{internal R}= V_DD*(18/32)

// enable comp, - input: PA3, + input: V_{internal R}

// disable PA3 digital input to prevent leakage current

$ GPCS

$ GPCC

V_DD*18/32;

Enable, N_PA3, P_R;

// - input: N_xx，+ input: P_R(V_{internal R})

PADIER = 0bxxxx_0_xxx;

Case 2:

Choosing V_{internal R}as minus input with (22/40)*V_DDvoltage level and PA4 as plus input, the comparator

result will be inverted and then output to PA0. V_{internal R}is configured as the above Figure “gpcs[5:4] =

2b’10” and gpcs [3:0] = 4b’1101 (n=13) to have V_{internal R}= (1/5)*V_DD+ [(13+1)/40]*V_DD= [(13+9)/40]*V_DD

= (22/40)*V_DD.

gpcs = 0b1_0_10_1101;

gpcc = 0b1_0_0_1_011_1;

// output to PA0,V_{internal R}= V_DD*(22/40)

// Inverse output, - input: V_{internal R}, + input: PA4

// disable PA4 digital input to prevent leakage current

padier

= 0bxxx_0_xxxx;

$ GPCS

$ GPCC

Output, V_DD*22/40;

Enable, Inverse, N_R, P_PA4; // - input: N_R(V_{internal R})，+ input: P_xx

PADIER = 0bxxx_0_xxxx;

Note: When selecting output to PA0 output, GPCS will affect the PA3 output function in ICE. Though the

IC is fine, be careful to avoid this error during emulation.

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PDK-DS-PFS122-EN_V000-May 28, 2020