收藏本站
Core8051
Timer/Counter Mode Control Register (tmod)
Table 22 displays the tmod register functions.
Table 22 ? tmod Register Flags
MSB
LSB
GATE
C/T
M1
M0
GATE
C/T
M1
M0
Timer 1
Timer 0
Table 23 provides tmod register bits descriptions.
Table 23 ? tmod Register Bits Description
Bit
Symbol Function
7,3
6, 2
5, 1
4, 0
GATE
C/T
M1
M0
If set, enables external gate control (pin int0 or int1 for Counter 0 or Counter 1, respectively). When int0 or int1
is high, and the trx bit is set (see tcon register), the counter is incremented every falling edge on the t0 or t1 input
pin.
Selects Timer or Counter operation. When set to logic 1, a Counter operation is performed. When cleared to
logic 0, the corresponding register will function as a Timer.
Selects the mode for Timer/Counter 0 or Timer/Counter 1.
Selects the mode for Timer/Counter 0 or Timer/Counter 1.
Table 24 provides timer and counter mode descriptions.
Table 24 ? Timers/Counter Mode Description
M1
0
M0
0
Mode
Mode 0
Function
13-bit Counter/Timer, with five lower bits in the tl0 or tl1 register and eight bits in the th0 or th1
register (for Timer 0 and Timer 1, respectively). The three high order bits of the tl0 and tl1 registers are
held at zero.
0
1
1
0
Mode 1
Mode2
16-bit Counter/Timer
8-bit auto-reload Counter/Timer. The reload value is kept in the th0 or th1 register, while the tl0 or tl1
register is incremented every machine cycle. When the tl0 or tl1 register overflows, the value in the th0
or th1 register is copied to the tl0 or tl1 register, respectively.
1
1
Mode3
If the M1 and M0 bits in Timer 1 are set to logic 1, Timer 1 stops. If the M1 and M0 bits in Timer 0 are
set to logic 1, Timer 0 acts as two independent 8-bit Timers/Counters.
Note: The th0 register is affected by the tr1 bit in the tcon register. When the th0 register overflows, the tf1 flag in the tcon register is set.
Timer/Counter Control Register (tcon)
Table 25 displays the tcon register flags.
Table 25 ? tcon Register Flags
MSB
LSB
TF1
TR1
TF0
TR0
IE1
IT1
IE0
IT0
v6.0
29
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
COREFFT-RM IP MODULE COREFFT
COREFIR-RM IP MODULE COREFIR
COREPCIF-RM IP MODULE COREPCIF
COREU1LL-AR IP MODULE COREU1LL
COREU1PHY-AR IP MODULE COREU1PHY
CORR-8BIT-XM-UT2 SITE LICENSE IP CORRELATOR XP
CP2-GSA-L CONN SHIELD LOWER TYPE A 22
CP2-HSA110-1 CONN SHROUD CPCI 2MM TYPE A 22
相关代理商/技术参数
CORE8051-EV 制造商:ACTEL 制造商全称:Actel Corporation 功能描述:Core8051
CORE8051-SN 制造商:ACTEL 制造商全称:Actel Corporation 功能描述:Core8051
CORE8051-SR 制造商:ACTEL 制造商全称:Actel Corporation 功能描述:Core8051
CORE8051-UR 制造商:ACTEL 制造商全称:Actel Corporation 功能描述:Core8051
CORE8051-XX 制造商:ACTEL 制造商全称:Actel Corporation 功能描述:Core8051
Core8b/10b-AR 制造商:Microsemi Corporation 功能描述:CORE - Virtual or Non-Physical Inventory (Software & Literature)
COREAES128 制造商:ACTEL 制造商全称:Actel Corporation 功能描述:CoreAES128
COREAES128-AN 制造商:ACTEL 制造商全称:Actel Corporation 功能描述:CoreAES128