T83C5121XXX-ICSIL datasheet(24/115 Pages) ATMEL

tên linh kiện	T83C5121XXX-ICSIL

Giải thích chi tiết về linh kiện	8-bit Microcontroller with Multiprotocol Smart Card Interface

PDF	115 Pages

Scroll/Zoom	100%

nhà sản xuất	ATMEL [ATMEL Corporation]

Trang chủ	http://www.atmel.com

Logo

24 / 115 page

A/T8xC5121

4164G–SCR–07/06

Clock Prescaler

Before supplying the CPU and the peripherals, the main clock is divided by a factor 2 to

30 to reduce the CPU power consumption. This factor is controlled with the CKRL

Table 7. Examples of Factors

Clock Control Registers

Clock Prescaler Register

This register is used to reload the clock prescaler of the CPU and peripheral clock.

Table 8. CKRL Register

CKRL - Clock Reload Register (97h)

Reset Value = XXXX 111Xb

XTAL (MHz)

X2 CPU CKCON0

CKRL Value

Prescaler Factor

CLK_CPU, FCLK_Periph

(MHz)

0 (reset mode)

07h

1 (X2 mode)

07h

06h

CKRL

Bit

Number

Bit

Mnemonic

Description

7 - 4

Reserved

The value read from this bit is indeterminate. Do not set this bit.

3 - 1

CKRL

Clock Reload Register

Prescaler value

XXXX 000Xb: CKRL=7 and Division factor equals 14

XXXX 110Xb: CKRL=6 and factor equals 2

XXXX 111Xb: CKRL=7 and division factor equals 1

Reserved

The value read from this bit is indeterminate. Do not set this bit.

T83C5121XXX-ICSIL bảng dữ liệu(PDF) 24 Page - ATMEL Corporation

T83C5121XXX-ICSIL bảng dữ liệu(HTML) 24 Page - ATMEL Corporation

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

bảng dữ liệu tải về

Link URL