ENE KB3700 Keyboard Controller Datasheet R0.1 2006

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Feature Summary

5 [9 O- y4 N$ U5 M' P8 sLow Pin Count Host Interface (LPC)
  SIRQ supporting IRQ1, IRQ12, SCI
  I/O Address Decoding:
  KBC IO Port 60h/64h
  Programmable EC IO Port 62h/66h and 68h/6Ch
3 ?, z( R* X7 h  m3 c  Programmable 4-byte Index I/O ports to access internal registers
  t4 u5 j4 j- ]  g% c- Y: t  One Programmable I/O write byte-address decoding
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" y7 B% {5 a' S; hX-Bus Interface (XBI)
  SPI Flash support, the operation frequency runs at least 50MHz.
  Addressable Memory range up to 24MB.
  8051 64KB code memory can be mapped into 4 independent 16KB pages.
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8051 Microprocessor
- ?- S$ O' i: X, O  Industry 8051 Instruction set complaint with 3~5 cycles per instruction.
0 u. I: c5 K* w# h0 C5 Y! w6 L  Programmable 8/16/32 MHz clock
: m$ k7 ]) D2 J4 e$ ?6 l  Fast instruction fetching from XBI Interface
  128 bytes and 2KB tightly-coupled SRAM
  24 extended interrupt sources.
5 p4 F# [* j# U. _+ ~/ E# q  Two 16-bit tightly-coupled timer

8042 Keyboard Controller
% A/ l4 y: t$ k  8 Standard keyboard commands processed by hardware
3 A( j& }5 l) C$ u  Each hardware command can be optionally processed by firmware
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Embedded Controller (EC)
  Five EC Standard Commands can be processed by hardware
  ACPI Specification 2.0 compliant
  Support customer command by firmware
  Programmable EC I/O port addressing (default 62h/66h)
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Analog To Digital Converter (ADC)
4 Z* l0 C7 b( {5 \5 }8 D) T  6 built-in ADCs with 8-bit resolution.
* k( C$ R# J* g6 s; R  The ADC pins can be alternatively configured as General Purpose Inputs (GPI).
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Pulse Width Modulator (PWM)
- v' P9 D) W' e! q0 K/ B  5 built-in PWMs
% F* q8 ]9 W" m  Selectable clock sources: 1MHz/64KHz/4KHz/256Hz.
  Configurable cycle time (up to 1 sec) and duty cycle.

Watchdog Timer (WDT)
  32.768KHz input clock with 20-bit time scale.
  8-bit watchdog timer interrupt and reset setting

! }4 _9 I8 }. ]5 qGeneral Purpose Timer (GPT)
  Two 16-bit, two 8-bit general purpose timers with 32.768KHz resolution
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General Purpose Wake-Up (GPWU)
  All General Purpose Input pins can be configured to generate interrupts or wake-up event.
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9 |. B7 g. I, X  g5 Y8 t- F: ZGeneral Purpose Input/Output (GPIO)
6 k! _, p) O. f) ~4 W  All I/O pins are bi-direction and configurable
  All outputs can be optionally tri-stated
! k& c6 h8 q% r( K: U  All inputs equipped with pull-up, high/low active, edge/level trigger selection
$ F( G- X! j% p3 B' s  All GPIO pins are bi-direction, input and output.
( j, K0 F( U, `# R3 T  Max. 43 GPIOs

Power Management
  Sleep State: 8051 Program Counter (PC) stopped
  Deep Sleep State: Stop all internal clocks. Target power consumption ~10uA.
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0 E2 D! z& G9 |5 B8 mTotal Pages: 40

szyxp

many thanks! 有KB3310的DATASHEET吗?

nickname

Thanks a lot

sweaker

这个SPEC还是太简单了，谁知道ENE在用SPI ROM时，prefetch的cache有多大？如果spi run over 50Mhz,我看到它的8051处理指令需要3～5个cycles，而且听说ENE用的免费的C code，那么你们在用的时候感觉perfermance怎么样？特别是处理PS2 device的时候。