Texas Instruments TMS3320C5515 User Manual

Page 41

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Power Management

The peripheral clock gating configuration register 2 (PCGCR2) is shown in

Figure 1-15

and described in

Table 1-25

.

Figure 1-15. Peripheral Clock Gating Configuration Register 2 (PCGCR2) [1C03h]

15

8

Reserved

R-0

7

6

5

4

3

2

1

0

Reserved

ANAREGCG

DMA3CG

DMA2CG

DMA1CG

USBCG

SARCG

LCDCG

R-0

R/W-0

R/W-0

R/W-0

R/W-0

R/W-0

R/W-0

R/W-0

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 1-25. Peripheral Clock Gating Configuration Register 2 (PCGCR2) Field Descriptions

Bit

Field

Value

Description

15-7

Reserved

0

Reserved.

6

ANAREGCG

Analog registers clock gate control bit. This bit is used to enable and disable the clock to the
registers that control the analog domain of the device, i.e. registers in the 7000h-70FFh I/O space
address range. NOTE When SARCG = 0, the clocks to the analog domain registers are enabled
regardless of the ANAREGCG setting.

0

Clock is active.

1

Clock is disabled.

5

DMA3CG

DMA controller 3 clock gate control bit. This bit is used to enable and disable the DMA controller 3
peripheral clock.

0

Peripheral clock is active.

1

Peripheral clock is disabled.

4

DMA2CG

DMA controller 2 clock gate control bit. This bit is used to enable and disable the DMA controller 2
peripheral clock.

0

Peripheral clock is active.

1

Peripheral clock is disabled.

3

DMA1CG

DMA controller 1 clock gate control bit. This bit is used to enable and disable the DMA controller 1
peripheral clock.

0

Peripheral clock is active.

1

Peripheral clock is disabled.

2

USBCG

USB clock gate control bit. This bit is used to enable and disable the USB controller peripheral
clock. NOTE You must request permission before stopping the USB clock through the peripheral
clock stop request/acknowledge register (CLKSTOP). This register does not stop the USB PLL.

0

Peripheral clock is active.

1

Peripheral clock is disabled.

1

SARCG

SAR clock gate control bit. This bit is used to enable and disable the SAR peripheral clock. NOTE
When SARCG = 0, the clock to the analog domain registers is enabled regardless of the
ANAREGCG setting.

0

Peripheral clock is active.

1

Peripheral clock is disabled.

0

LCDCG

LCD controller clock gate control bit. This bit is used to enable and disable the LCD controller
peripheral clock.

0

Peripheral clock is active.

1

Peripheral clock is disabled.

41

SPRUFX5A – October 2010 – Revised November 2010

System Control

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