参数资料
型号: MC68HSC05C9AP
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 4.1 MHz, MICROCONTROLLER, PDIP40
封装: PLASTIC, DIP-40
文件页数: 122/160页
文件大小: 4128K
代理商: MC68HSC05C9AP
NON-DISCLOSURE
AGREEMENT
REQUIRED
Capture/Compare Timer
General Release Specification
MC68HC05C9A Rev. 4.0
Capture/Compare Timer
8.4.4 Alternate Timer Registers (ATRH and ATRL)
The alternate timer registers, shown in Figure 8-5, contain the current
high and low bytes of the 16-bit counter. Reading ATRH before reading
ATRL causes ATRL to be latched until ATRL is read. Reading ATRL has
no effect on the timer overflow flag (TOF). Writing to the alternate timer
registers has no effect.
Figure 8-5. Alternate Timer Registers (ATRH and ATRL)
NOTE:
To prevent interrupts from occurring between readings of ATRH and
ATRL, set the interrupt flag in the condition code register before reading
ATRH, and clear the flag after reading ATRL.
ATRH
$001A
Bit 7
6
5
4
3
2
1
Bit 0
Read:
BIT15
BIT14
BIT13
BIT12
BIT11
BIT10
BIT9
BIT8
Write:
Reset:
11111111
ATRL
$001B
Bit 7
6
5
4
3
2
1
Bit 0
Read:
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
BIT1
BIT0
Write:
Reset:
11111100
= Unimplemented
F
re
e
sc
a
le
S
e
m
ic
o
n
d
u
c
to
r,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
c
..
.
相关PDF资料
PDF描述
MC9S08RD32FG 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP44
MC9S08RG60CFG 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP44
MC68HC11E0VFU2 8-BIT, 2 MHz, MICROCONTROLLER, PQFP64
MC9S12DJ256VPV 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP112
MC68030RC40C 32-BIT, 40 MHz, MICROPROCESSOR, CPGA128
相关代理商/技术参数
参数描述
MC68HSC705C8ACFB 制造商:Rochester Electronics LLC 功能描述:8 BIT MCU, 304 BYTES RAM - Bulk
MC68HSC705C8ACP 制造商:Rochester Electronics LLC 功能描述: 制造商:Freescale Semiconductor 功能描述:
MC68HSC705C8ACS 制造商:Rochester Electronics LLC 功能描述:- Bulk
MC68HSC705J1ACDW 制造商:Rochester Electronics LLC 功能描述:- Bulk
MC68HSC705J1ACP 制造商:Rochester Electronics LLC 功能描述:8 BIT MCU, 64 BYTES RAM - Bulk