MEC1322 Datasheet, PDF (45/456 Pages) Microchip Technology – Keyboard and Embedded Controller for Notebook PC

MEC1322
2.0 BLOCK OVERVIEW
This Chapter provides an overview of the blocks in the MEC1322.
The block diagram of the MEC1322 is shown in Figure 2-1.
FIGURE 2-1:
BLOCK DIAGRAM
PS/2
PS/2
PS/2
PS/2
Port
Port
0
1
SMB0
Port
0
SMB1
Port
0
SMB2
Port
0
SMB3
Shared
SPI
Master
Private
SPI
Master
PWM0
PWM1
PWM2
PWM3
KB Scan
GPIO
LED Control (x4)
BC-Link
RPM_PWM
VBAT Resources
VBAT Regs.
VBAT RAM
Executable SRAM
Floating Point Unit
EC Core
Tach 0
Tach 1
ADC Ch0-4
ADC to
PWM
Boot
ROM
VREF_PECI
Timer
16-bit x4
Timer
32-bit x2
Hibernation
Timer
WDT
EC_Reg
Bank
DMA
Controller
Interrupt
Aggregater
PECI
Interfaces
8042 KBC
ACPI EC (x2)
PM1
MBX
Port92
PnP CFG
UART
RTC
On-Chip
Clocking
EMI
LPC
Glue
Logic
nRESET
_OUT,
VCC1
_RST#
Ring
Osc
TFDP
Crystal
Osc
Clock
Gen & Dist
Debug
and Test
Table 2-1 on page 46 lists Address Ranges for each of the blocks.
 2014 - 2015 Microchip Technology Inc.
DS00001719D-page 45