C8051F581-IMR Silicon Labs, C8051F581-IMR Datasheet - Page 308
![no-image](/images/no-image-200.jpg)
C8051F581-IMR
Manufacturer Part Number
C8051F581-IMR
Description
8-bit Microcontrollers - MCU 50MIPS 128kB 8kB SPI
Manufacturer
Silicon Labs
Datasheet
1.C8051F585-IQR.pdf
(356 pages)
Specifications of C8051F581-IMR
Rohs
yes
Core
8051
Processor Series
C8051
Data Bus Width
8 bit
- Current page: 308 of 356
- Download datasheet (3Mb)
C8051F58x/F59x
SFR Definition 27.18. TMRnCN: Timer 4 and 5 Control
TMR4CN SFR Address = 0xC8; Bit-Addressable; SFR Page = 0x10
TMR5CN SFR Address = 0x91; SFR Page = 0x10;
308
Name
Reset
5:4
Bit
Type
7
6
3
2
1
0
Bit
Reserved
CPRLn
Name
EXFn
EXEn
TRn
CTn
TFn
R/W
TFn
7
0
Timer 4 and 5 16-bit Overflow/Underflow Flag.
Set by hardware when either the Timer overflows from 0xFFFF to 0x0000, under-
flows from the value placed in TMRnCAPH:TMRnCAPL to 0xFFFF (in Auto-reload
Mode), or underflows from 0x0000 to 0xFFFF (in Capture Mode). When the Timer
interrupt is enabled, setting this bit causes the CPU to vector to the Timer interrupt
service routine. This bit is not automatically cleared by hardware.
Timer 4 and 5 External Flag.
Set by hardware when either a capture or reload is caused by a high-to-low transition
on the TnEX input pin and EXENn is logic 1. This bit is not automatically cleared by
hardware.
Must Write 00b.
Timer 4 and 5 External Enable.
Enables high-to-low transitions on TnEX to trigger captures, reloads, and control the
direction of the timer/counter (up or down count). If DCENn = 1, TnEX will determine
if the timer counts up or down when in Auto-reload Mode. If EXENn = 1, TnEX should
be configured as a digital input.
0: Transitions on the TnEX pin are ignored.
1: Transitions on the TnEX pin cause capture, reload, or control the direction of timer
count (up or down) as follows:
Capture Mode : ‘1’-to-’0’ Transition on TnEX pin causes TMRnCAPH:TMRnCAPL to
capture timer value.
Auto-Reload Mode : DCENn = 0: ‘1’-to-’0’ transition causes reload of timer and sets
the EXFn Flag. DCENn = 1: TnEX logic level controls direction of timer (up or down).
Timer 4 and 5 Run Control.
0: Timer is disabled.
1: Timer enabled and running / counting.
Timer 4 and 5 Counter / Timer Select.
0: Timer Function: Timer incremented by clocked defined in TnM1:TnM0 (TMRnCF).
1: Counter Function: Timer incremented by high-to-low transitions on TnEX pin.
Timer 4 and 5 Capture / Reload Select.
0: Timer is in Auto-Reload mode.
1: Timer is in Capture mode.
EXFn
R/W
6
0
R/W
5
0
R/W
Rev. 1.2
4
0
Function
EXEn
R/W
3
0
TRn
R/W
2
0
CTn
R
1
0
CPRLn
R/W
0
0
Related parts for C8051F581-IMR
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![CP2102EK](/photos/9/3/90395/cp2102ek_tmb.jpg)
Part Number:
Description:
KIT EVALUATION FOR CP2102
Manufacturer:
Silicon Laboratories Inc
Datasheet:
![CP2103EK](/photos/9/6/90669/cp2103ek_tmb.jpg)
Part Number:
Description:
KIT EVAL FOR CP2103 USB TO UART
Manufacturer:
Silicon Laboratories Inc
Datasheet:
![CP2201EK](/photos/9/9/90977/cp2201ek_tmb.jpg)
Part Number:
Description:
KIT EVAL FOR CP2201 ETH CTRLR
Manufacturer:
Silicon Laboratories Inc
Datasheet:
![CAPTOUCHSENSEDC](/photos/9/20/92001/captouchsensedc_tmb.jpg)
Part Number:
Description:
DAUGHTER CARD CAP TOUCH SENSE
Manufacturer:
Silicon Laboratories Inc
Datasheet:
![CAPTOUCHSENSESK](/photos/9/20/92002/captouchsensesk_tmb.jpg)
Part Number:
Description:
KIT STARTER CAP TOUCH SENSE
Manufacturer:
Silicon Laboratories Inc
Datasheet:
![C8051F320DK](/photos/9/20/92068/c8051f320dk_tmb.jpg)
Part Number:
Description:
DEV KIT FOR C8051F320/F321
Manufacturer:
Silicon Laboratories Inc
Datasheet:
![C8051F120DK](/photos/9/20/92070/c8051f120dk_tmb.jpg)
Part Number:
Description:
DEVKIT-F120/21/22/23/24/25/26/27
Manufacturer:
Silicon Laboratories Inc
Datasheet:
![C8051F310DK](/photos/9/23/92300/c8051f310dk_tmb.jpg)
Part Number:
Description:
DEV KIT FOR C8051F310/F311
Manufacturer:
Silicon Laboratories Inc
Datasheet:
![C8051F226DK](/photos/9/23/92302/c8051f226dk_tmb.jpg)
Part Number:
Description:
DEV KIT F220/221/226/230/231/236
Manufacturer:
Silicon Laboratories Inc
Datasheet:
![C8051F300DK](/photos/9/23/92305/c8051f300dk_tmb.jpg)
Part Number:
Description:
DEV KIT F300/301/302/303/304/305
Manufacturer:
Silicon Laboratories Inc
Datasheet:
![C8051F330DK](/photos/9/23/92306/c8051f330dk_tmb.jpg)
Part Number:
Description:
DEV KIT FOR C8051F330/F331
Manufacturer:
Silicon Laboratories Inc
Datasheet:
![C8051F005DK](/photos/9/23/92307/c8051f005dk_tmb.jpg)
Part Number:
Description:
DEV KIT FOR F005/006/007
Manufacturer:
Silicon Laboratories Inc
Datasheet:
![C8051F020DK](/photos/9/23/92314/c8051f020dk_tmb.jpg)
Part Number:
Description:
DEV KIT FOR F020/F021/F022/F023
Manufacturer:
Silicon Laboratories Inc
Datasheet:
![C8051F340DK](/photos/9/23/92323/c8051f340dk_tmb.jpg)
Part Number:
Description:
KIT DEV FOR C8051F34X
Manufacturer:
Silicon Laboratories Inc
Datasheet:
![C8051F410DK](/photos/9/23/92324/c8051f410dk_tmb.jpg)
Part Number:
Description:
KIT DEV FOR C8051F41X
Manufacturer:
Silicon Laboratories Inc
Datasheet: