MEC1322 Datasheet, PDF (261/456 Pages) Microchip Technology – Keyboard and Embedded Controller for Notebook PC

MEC1322
TABLE 21-3: DMA CONTROLLER MASTER DEVICES SIGNAL LIST (CONTINUED)
Device Name
Dev
Num Device Signal Name
(21.5)
Direction
Description
SMBus 3 Controller
SPI 0 Controller
SPI 1 Controller
6
SMB_SDMA_Req
INPUT
DMA request control from SMBus Slave
channel.
SMB_SDMA_Term
INPUT
DMA termination control from SMBus
Slave channel.
SMB_SDMA_Done
OUTPUT
DMA termination control from DMA Con-
troller to Slave channel.
7
SMB_MDMA_Req
INPUT
DMA request control from SMBus Master
channel.
SMB_MDMA_Term
INPUT
DMA termination control from SMBus Mas-
ter channel.
SMB_MDMA_Done
OUTPUT
DMA termination control from DMA Con-
troller to Master channel.
8
SPI_SDMA_Req
INPUT
DMA request control from SPI TX channel.
SPI_SDMA_Term
INPUT
DMA termination control from SPI TX
channel. Not supported.
SPI_SDMA_Done
OUTPUT
DMA termination control from DMA Con-
troller to TX Channel. Not supported.
9
SPI_MDMA_Req
INPUT
DMA request control from SPI RX channel.
SPI_MDMA_Term
INPUT
DMA termination control from SPI RX
channel. Not supported.
SPI_MDMA_Done
OUTPUT
DMA termination control from DMA Con-
troller to RX channel. Not supported.
10
SPI_SDMA_Req
INPUT
DMA request control from SPI TX channel.
SPI_SDMA_Term
INPUT
DMA termination control from SPI TX
channel. Not supported.
SPI_SDMA_Done
OUTPUT
DMA termination control from DMA Con-
troller to TX Channel. Not supported.
11
SPI_MDMA_Req
INPUT
DMA request control from SPI RX channel.
SPI_MDMA_Term
INPUT
DMA termination control from SPI RX
channel. Not supported.
SPI_MDMA_Done
OUTPUT
DMA termination control from DMA Con-
troller to RX channel. Not supported.
21.5 Power, Clocks and Reset
This section defines the Power, Clock, and Reset parameters of the block.
21.5.1 POWER DOMAINS
TABLE 21-4: POWER SOURCES
Name
VCC1
21.5.2 CLOCK INPUTS
Description
This power well sources the registers and logic in this block.
TABLE 21-5: CLOCK INPUTS
Name
48 MHz Ring Oscillator
Description
This clock signal drives selected logic (e.g., counters).
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DS00001719D-page 261