TMPR4937 datasheet(95/552 Pages) TOSHIBA

tên linh kiện	TMPR4937

Giải thích chi tiết về linh kiện	64-Bit TX System RISC TX49 Family

PDF	552 Pages

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nhà sản xuất	TOSHIBA [Toshiba Semiconductor]

Trang chủ	http://www.semicon.toshiba.co.jp/eng

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Chapter 6 Clocks

6-1

Clocks

6.1

TX4937 Clock Signals

Figure 6.1.1 shows the configuration of TX4937 blocks and clock signals. Table 6.1.1 describes each clock

signal. Table 6.1.2 shows the relationship among different clock signals when the CPU clock frequency is

266 MHz. Table 6.1.3 shows the relationship among different clock signals when the CPU clock frequency is

300 MHz. Table 6.1.4 shows the relationship among different clock signals when the CPU clock frequency is

333 MHz.

Figure 6.1.1 TX4937 Block and Clock Configuration

SDRAMC

PCIC

TX49/H3 core

IRC

EBUSC

DMAC

CPUCLK

GBUSCLK

IMBUSCLK

CLKCTR

MASTERCLK

SYSCLK

SDCLK[3:0]

SDCLKIN

PCICLK[5:0]

PCICLKIN

TX4937

Data input latch

CLKGATE

PCICLKO

×1

TCLK

1/2

ADDR[3][1:0]

PLL1

ADDR[11:10]

(CCFG.

PCIDIVMODE)

ADDR[14:13]

PCI device

External

device

PLL2

Oscillator

×1

1/1

1/2

1/3

1/4

DMACKD

PCICKD

PIOCKD

TM2CKD

TM1CKD

TM0CKD

SIO1CKD

PIO

CLKGATE

TMR2

TMR1

TMR0

SIO1

SIO0

SIO0CKD

SDRAM

SCLK

ACLCKD

ACLC

BITCLK

×4

EJTAG/DSU

DCLK

TCK

ADDR[2]

1/4

1/4.5

1/5

1/5.5

1/8

1/9

1/10

1/11

×2

×2.5

×3

×4

x4.5

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