MEC1322 Datasheet, PDF (19/456 Pages) Microchip Technology – Keyboard and Embedded Controller for Notebook PC

MEC1322
1.4.15 SPI CONTROLLER INTERFACE
TABLE 1-19: SPI CONTROLLER INTERFACE
SPI Controllers Interface
Pin Ref. Number Signal Name
3
SHD_SCLK
128
SHD_MOSI
95
SHD_MISO
97
SHD_CS0#
87
SHD_CS1#
2
PVT_SCLK
127
PVT_MOSI
94
PVT_MISO
96
PVT_CS0#
102
PVT_CS1#
Description
Shared SPI Clock
Shared SPI Output
Shared SPI Input
Shared SPI Chip Select 0
Shared SPI Chip Select 1
Private SPI Clock
Private SPI Output
Private SPI Input
Private SPI Chip Select 0
Private SPI Chip Select 1
(10 Pins)
Notes
Note 10
Note 10
Note 10
Note 10
Note 10
Note 10
Note 10
Note 10
1.4.16 TRACE DEBUG INTERFACE
TABLE 1-20: TRACE DEBUG INTERFACE
Trace Debug Interface
Pin Ref. Number Signal Name
25
TRACECLK
26
TRACEDATA0
27
TRACEDATA1
28
TRACEDATA2
29
TRACEDATA3
Description
Trace Clock
Trace Data 0
Trace Data 1
Trace Data 2
Trace Data 3
(5 Pins)
Notes
The Trace Debug Interface is enabled using the TRACE_EN bit in the ETM TRACE Enable register defined in Chapter
35.0, "EC Subsystem Registers".
Note:
These pins are push-pull outputs when enabled as the Trace Debug Interface pin functions. This function-
ality is not configured through the associated GPIO Pin Control Register; however the drive strength of
these pins is configured through the associated GPIO Pin Control Register 2.
1.4.17 UART PORT
TABLE 1-21: UART PORT
UART Port
Pin Ref. Number
86
87
Signal Name
RXD
TXD
Description
UART Receive Data
UART Transmit Data
(2 Pins)
Notes
1.5 Pin Multiplexing
Multifunction Pin Multiplexing in the MEC1322 is controlled by the GPIO Interface and illustrated in the Multiplexing
Tables that follow. See Section 1.6, "Notes for Tables in this Chapter," on page 39 for notes that are referenced in the
Pin Multiplexing tables. See Section 20.8.1, "Pin Control Register," on page 250 for Pin Multiplexing programming
details. See also Section 20.7, "Pin Multiplexing Control," on page 248.
Pin signal functions that exhibit power domain emulation (see Multiplexing Tables below) have a different power supply
designation in the “Emulated Power Well” column and “Signal Power Well“ columns of the Multiplexing Tables in
Section 1.5.2.
 2014 - 2015 Microchip Technology Inc.
DS00001719D-page 19