MEC1322 Datasheet, PDF (1/456 Pages) Microchip Technology – Keyboard and Embedded Controller for Notebook PC

MEC1322
Keyboard and Embedded Controller for Notebook PC
Product Features
• ARM^® Cortex^®-M4 Processor Core
- 32-Bit ARM v7-M Instruction Set Architecture
- Hardware Floating Point Unit (FPU)
- Single 4GByte Addressing Space (Von Neu-
mann Model)
- Little-Endian Byte Ordering
- Bit-Banding Feature Included
- NVIC Nested Vectored Interrupt Controller
- Up to 240 Individually-Vectored Interrupt Sources
Supported
- 8 Levels of Priority, Individually Assignable By Vector
- Chip-Level Interrupt Aggregator supported, to
expand number of interrupt sources or reduce
number of vectors
- System Tick Timer
- Complete ARM-Standard Debug Support
- JTAG-Based DAP Port, Comprised of SWJ-DP and
AHB-AP Debugger Access Functions
- Full DWT Hardware Functionality: 4 Data
Watchpoints and Execution Monitoring
- Full FPB Hardware Breakpoint Functionality: 6
Execution Breakpoints and 2 Literal (Data)
Breakpoints
- Comprehensive ARM-Standard Trace Sup-
port
- Full DWT Hardware Trace Functionality for
Watchpoint and Performance Monitoring
- Full ITM Hardware Trace Functionality for
Instrumented Firmware Support and Profiling
- Full ETM Hardware Trace Functionality for
Instruction Trace
- Full TPIU Functionality for Trace Output
Communication
• 128K SRAM (Code or Data)
- 96K Optimized for Code
- 32K Optimized for Data
• LPC Interface
- Supports LPC Bus frequencies of 19MHz to
33MHz
- LPC I/O Cycles Decoded
- LPC Memory Cycles Decoded
- Clock Run Support
- Serial IRQ
- ACPI SCI interface
- SMI# output
• Two SPI Memory Interfaces
- 3-pin Full Duplex serial communication interface
- Two Private and Two Shared Chip Selects
- DMA Support
• 8042 Style Host Interface
- Mailbox Registers Interface
- Forty-three 8-Bit scratch registers
- Two Register Mailbox Command Interface
- Two Register SMI Source Interface
• Two ACPI Embedded Controller Interface
- 1 or 4 Byte Data transfer capable
• ACPI Power Management Interface
- SCI Event-Generating Functions
• Embedded Memory Interface
- Host Serial IRQ Source
- Provides Two Windows to On-Chip SRAM for
Host Access
• Two Register Mailbox Command Interface
• Battery Backed (VCC0/VBAT) Resources
- Power Fail Register
- Power-Fail Status Register
- Battery backed 64 byte memory
• Real Time Clock (RTC)
- VCC0 (VBAT) Powered
- 32KHz Crystal Oscillator
- 32KHz Clock output available under VCC1
power
- Time-of-Day and Calendar Registers
- Programmable Alarms
- Supports Leap Year and Daylight Savings
Time
• Hibernation Timers
• General Purpose Analog to Digital Converter
- 10-bit conversion precision
- 10-bit conversion per channel is completed in
less than 12us
- 5 ADC channels
- 10-bit Conversion with 2.9mV resolution
- 0 to 3.3 VDC Conversion Range
- Optional continuous sampling at a programmable
rate
- Internal Analog Voltage Reference (3.0V +/-
1%)
• Watch Dog Timer
• Four Programmable 16-bit and Two 32-bit Timers
- Wake-capable Auto-reloading Timers
• Four Independent Hardware Driven PS/2 Ports
- Fully functional on Main and/or Suspend
Power
- PS/2 Edge Wake Capable
• Four Programmable Pulse-Width Modulator Out-
puts
- Independent Clock Rates
- 16-Bit Duty Cycle Granularity
- Operational in both Full on and Standby modes
 2014 - 2015 Microchip Technology Inc.
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