參數(shù)資料
型號: TMS320DM355_07
廠商: Texas Instruments, Inc.
英文描述: Digital Media System-on-Chip (DMSoC)
中文描述: 數(shù)字媒體系統(tǒng)芯片(DMSoC)
文件頁數(shù): 74/158頁
文件大?。?/td> 1319K
代理商: TMS320DM355_07
www.ti.com
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3.6.2
PLLC1
TMS320DM355
Digital Media System-on-Chip (DMSoC)
SPRS463B–SEPTEMBER 2007–REVISED OCTOBER 2007
PLLC1 provides most of the DM355 clocks. Software controls PLLC1 operation through the PLLC1
registers. The following list,
Table 3-10
, and
Figure 3-3
describe the customizations of PLLC1 in the
DM355.
Provides primary DM355 system clock
Software configurable
Accepts clock input or internal oscillator input
PLL pre-divider value is fixed to (/8)
PLL multiplier value is programmable
PLL post-divider
Only SYSCLK[4:1] are used
SYSCLK1 divider value is fixed to (/2)
SYSCLK2 divider value is fixed to (/4)
SYSCLK3 divider value is programmable
SYSCLK4 divider value is programmable to (/4) or (/2)
SYSCLKBP divider value is fixed to (/3)
SYSCLK1 is routed to the ARM Subsystem
SYSCLK2 is routed to peripherals
SYSCLK3 is routed to the VPBE module
SYSCLK4 is routed to the VPSS module
AUXCLK is routed to peripherals with fixed clock domain and also to the output pin CLKOUT1
SYSCLKBP is routed to the output pin CLKOUT2
Table 3-10. PLLC1 Output Clocks
Output Clock
Used By
PLLDIV
Divider
/2
/4
/n
Notes
SYSCLK1
SYSCLK2
SYSCLK3
ARM Subsystem / MPEG and JPEG Co-Processor
Peripherals
VPBE (VENC module)
Fixed divider
Fixed divider
Programmable divider (used to get 27
MHz for VENC)
Programmable divider
No divider
Fixed divider
SYSCLK4
AUXCLK
SYSCLKBP
VPSS
/4 or /2
none
/3
Peripherals, CLKOUT1
CLKOUT2
Detailed Device Description
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