參數資料
型號： KSZ8864RMNI
廠商： Micrel Inc
文件頁數： 59/111頁
文件大?。?/td> 0K
描述： IC ETHERNET SWITCH 4PORT 64QFN
特色產品： KSZ8864RMN Ethernet Switches
標準包裝： 348
系列： *
其它名稱： 576-3995
1997 Microchip Technology Inc.
DS30444E - page 51
PIC16C9XX
8.0
TIMER1 MODULE
Timer1 is a 16-bit timer/counter consisting of two 8-bit
registers (TMR1H and TMR1L) which are readable and
writable. The TMR1 Register pair (TMR1H:TMR1L)
increments from 0000h to FFFFh and rolls over to
0000h. The TMR1 Interrupt, if enabled, is generated on
overow which is latched in interrupt ag bit TMR1IF
(PIR1<0>). This interrupt can be enabled/disabled by
setting/clearing TMR1 interrupt enable bit TMR1IE
(PIE1<0>).
Timer1 can operate in one of two modes:
As a timer
As a counter
The operating mode is determined by the clock select
bit, TMR1CS (T1CON<1>).
In timer mode, Timer1 increments every instruction
cycle. In counter mode, it increments on every rising
edge of the external clock input.
Timer1 can be turned on and off using the control bit
TMR1ON (T1CON<0>).
Timer1 also has an internal “reset input”. This reset can
be generated by the CCP module (Section 10.0).
Figure 8-1 shows the Timer1 control register.
When the Timer1 oscillator is enabled (T1OSCEN is
set), the RC1/T1OSI and RC0/T1OSO/T1CKI pins
become inputs.
FIGURE 8-1:
T1CON: TIMER1 CONTROL REGISTER (ADDRESS 10h)
U-0
R/W-0
—
T1CKPS1 T1CKPS0 T1OSCEN
T1SYNC
TMR1CS TMR1ON
R
= Readable bit
W = Writable bit
U
= Unimplemented bit,
read as ‘0’
- n = Value at POR reset
bit7
bit0
bit 7-6:
Unimplemented: Read as '0'
bit 5-4: T1CKPS1:T1CKPS0: Timer1 Input Clock Prescale Select bits
11
= 1:8 Prescale value
10
= 1:4 Prescale value
01
= 1:2 Prescale value
00
= 1:1 Prescale value
bit 3:
T1OSCEN: Timer1 Oscillator Enable Control bit
1 = Oscillator is enabled
0 = Oscillator is shut off
Note: The oscillator inverter and feedback resistor are turned off to eliminate power drain
bit 2:
T1SYNC: Timer1 External Clock Input Synchronization Control bit
TMR1CS = 1
1 = Do not synchronize external clock input
0 = Synchronize external clock input
TMR1CS = 0
This bit is ignored. Timer1 uses the internal clock when TMR1CS = 0.
bit 1:
TMR1CS: Timer1 Clock Source Select bit
1 = External clock from pin T1CKI (on the rising edge)
0 = Internal clock (Fosc/4)
bit 0:
TMR1ON: Timer1 On bit
1 = Enables Timer1
0 = Stops Timer1
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KSZ8864RMNU 功能描述:以太網 IC 4-Port 10/100BT Switch with MII/RMII (Automotive) RoHS:否 制造商:Micrel 產品:Ethernet Switches 收發(fā)器數量:2 數據速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray
KSZ8864RMNU TR 制造商:Micrel Inc 功能描述:IC ETHERNET SWITCH 4PORT 64MLF
KSZ8873FLL 功能描述:以太網 IC 3-Port Fast Ethernet Switch with 2x FX Ports - Lead free RoHS:否 制造商:Micrel 產品:Ethernet Switches 收發(fā)器數量:2 數據速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray
KSZ8873FLL-EVAL 功能描述:以太網開發(fā)工具 3-Port Fast Ethernet Switch with 2x FX Ports - Evaluation Board RoHS:否 制造商:Micrel 產品:Evaluation Boards 類型:Ethernet Transceivers 工具用于評估:KSZ8873RLL 接口類型:RMII 工作電源電壓:
KSZ8873FLLI 功能描述:以太網 IC 3-Port Fast Ethernet Switch with 2x FX Ports (Industrial Grade) RoHS:否 制造商:Micrel 產品:Ethernet Switches 收發(fā)器數量:2 數據速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray
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