ENE KB3700 Keyboard Controller Datasheet R0.1 2006

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Feature Summary

Low Pin Count Host Interface (LPC)
  SIRQ supporting IRQ1, IRQ12, SCI
, Z  `8 D% r) L" ?) v, J  I/O Address Decoding:
  KBC IO Port 60h/64h
8 B: ~" @$ F* v9 @' R  Programmable EC IO Port 62h/66h and 68h/6Ch
  Programmable 4-byte Index I/O ports to access internal registers
  One Programmable I/O write byte-address decoding

X-Bus Interface (XBI)
" E6 ^: r4 c: Y$ Z0 ?5 L% p" K  SPI Flash support, the operation frequency runs at least 50MHz.
( c& g! k* E! Z6 ?1 Z! f5 {  Addressable Memory range up to 24MB.
' i" n, b. ^5 y& L$ b  8051 64KB code memory can be mapped into 4 independent 16KB pages.
) y9 r$ a0 G, ]! h
+ K- s- ?( ~3 l$ O# x8051 Microprocessor
  Industry 8051 Instruction set complaint with 3~5 cycles per instruction.
, Z+ l$ b& w, H1 O7 L/ Z7 m/ H  Programmable 8/16/32 MHz clock
) j1 o' y2 U4 }' h: [" k1 b  Fast instruction fetching from XBI Interface
  128 bytes and 2KB tightly-coupled SRAM
+ h+ V1 I0 \1 C# p" G  24 extended interrupt sources.
  Two 16-bit tightly-coupled timer
' A: X- A( P+ D1 j* Q- n2 d
8042 Keyboard Controller
  8 Standard keyboard commands processed by hardware
  Each hardware command can be optionally processed by firmware

/ h, E( g1 P- y4 m5 _Embedded Controller (EC)
  Five EC Standard Commands can be processed by hardware
9 A/ |5 K; v" y* y  E4 v  z  ACPI Specification 2.0 compliant
  j, I5 S+ i9 D" F" n  Support customer command by firmware
/ k+ T6 q, K- q% {0 U6 f2 p  Programmable EC I/O port addressing (default 62h/66h)
& P  k/ y: C+ ]
Analog To Digital Converter (ADC)
/ N- l9 y) s8 e9 r2 G  6 built-in ADCs with 8-bit resolution.
  The ADC pins can be alternatively configured as General Purpose Inputs (GPI).

! k. r; m2 a* [1 yPulse Width Modulator (PWM)
  5 built-in PWMs
  Selectable clock sources: 1MHz/64KHz/4KHz/256Hz.
  Configurable cycle time (up to 1 sec) and duty cycle.

1 d( d6 E  A/ K+ ]Watchdog Timer (WDT)
  32.768KHz input clock with 20-bit time scale.
$ F* L$ L# v/ V- C- E8 t  8-bit watchdog timer interrupt and reset setting

General Purpose Timer (GPT)
7 k/ y; e* ~! y, ~* N4 P  Two 16-bit, two 8-bit general purpose timers with 32.768KHz resolution
9 K# |; R; P7 W
2 s* l. e! T+ _$ HGeneral Purpose Wake-Up (GPWU)
5 {. N; \, v, H" B5 V5 g  All General Purpose Input pins can be configured to generate interrupts or wake-up event.
- a, ~1 ~3 o6 i8 n
) @) E; n4 ~( ]& P* j: nGeneral Purpose Input/Output (GPIO)
* W/ O" S( L, F3 Q7 `; J8 \  All I/O pins are bi-direction and configurable
7 [- f5 K8 P# N1 v/ n  All outputs can be optionally tri-stated
  All inputs equipped with pull-up, high/low active, edge/level trigger selection
2 {  c; R4 G, x  All GPIO pins are bi-direction, input and output.
  Max. 43 GPIOs
2 X3 U) f2 G  v7 b9 {# Z2 K
" e" k& {. [- W0 O' X+ x/ w9 xPower Management
0 D0 r* I4 a, R+ z  Sleep State: 8051 Program Counter (PC) stopped
  Deep Sleep State: Stop all internal clocks. Target power consumption ~10uA.

; H3 i+ h7 F" u6 v$ `Total 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。