TMP92CF30
2009-06-12
92CF30-27
3.4.1
Block diagram of system clock
Clock gear
SYSCR0<PRCK>
fs
f
OSCH
Low frequency
Oscillator circuit
XT1
XT2
SYSCR0<XTEN >
Warming up timer
(High/Low frequency oscillator circuit)
SYSCR0<WUEF>
SYSCR2<WUPTM1:0>
X1
X2
÷
2
÷
16
÷
4
fc/16
fc/8
fc/4
fc/2
fc
PLLCR0<FCSEL>
SYSCR1<GEAR2:0>
÷
2
f
SYS
÷
2
φ
T0TMR
fs
φ
T0
High frequency
Oscillator circuit
÷
8
÷
2
f
IO
Lock up timer
(PLL)
PLLCR1<PLLON>,
PLLCR0<LUPFG>
÷
8
Clock Doubler1
(PLL1)
×
24
f
USB
SYSCR0<USBCLK1:0>
÷
5
f
PLLUSB
X1USB
TMRA0:7,TMRB0:1
f
SYS
CPU
RAM
Interrupt
Controller
I/O ports
Prescaler
φ
T0TMR
SIO0
RTC
fs
Prescaler
MLD/ALM
SDRAMC
f
io
Memory
Controller
NAND-Flash
Controller
I
2
S
TSI
SPIC
SBI
Prescaler
DMAC
MAC
f
USB
USB
ADC
÷
2
f
PLL
Clock Doubler0
(PLL0)
×
(12 or16)
f
PLL
÷
4
φ
T0
WDT
Figure 3.4.2 Block Diagram of System clock
Содержание TLCS-900/H1 Series
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