參數(shù)資料
型號: MC705J1ACDWE
廠商: Freescale Semiconductor
文件頁數(shù): 16/162頁
文件大小: 0K
描述: IC MCU 8BIT 1.2K RAM 20-SOIC
標(biāo)準(zhǔn)包裝: 38
系列: HC05
核心處理器: HC05
芯體尺寸: 8-位
速度: 4MHz
外圍設(shè)備: POR,WDT
輸入/輸出數(shù): 14
程序存儲器容量: 1.2KB(1.2K x 8)
程序存儲器類型: OTP
RAM 容量: 64 x 8
電壓 - 電源 (Vcc/Vdd): 3 V ~ 5.5 V
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 20-SOIC(0.295",7.50mm 寬)
包裝: 管件
Technical Data
MC68HC705J1A — Rev. 4.0
Multifunction Timer Module
Multifunction Timer Module
9.4 Interrupts
These timer sources can generate interrupts:
Timer overflow flag (TOF) — The TOF bit is set when the first eight
stages of the counter roll over from $FF to $00. The timer overflow
interrupt enable bit, TOIE, enables TOF interrupt requests.
Real-time interrupt flag (RTIF) — The RTIF bit is set when the
selected RTI output becomes active. The real-time interrupt
enable bit, RTIE, enables RTIF interrupt requests.
9.5 I/O Registers
These registers control and monitor the timer operation:
Timer status and control register (TSCR)
Timer counter register (TCR)
9.5.1 Timer Status and Control Register
The read/write timer status and control register (TSCR) performs these
functions:
Flags timer interrupts
Enables timer interrupts
Resets timer interrupt flags
Selects real-time interrupt rates
Address:
$0008
Bit 7
6
54321
Bit 0
Read:
TOF
RTIF
TOIE
RTIE
00
RT1
RT0
Write:
TOFR
RTIFR
Reset:
00
000011
= Unimplemented
Figure 9-3. Timer Status and Control Register (TSCR)
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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