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[讨论] 瑞萨键盘电源管理方案的资料有没有人要?

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发表于 2009-5-14 12:08:22 | 显示全部楼层 |阅读模式
• P/N : R4F2112VBG20V (BGA); R4F2112VTE (TQPF); R4F2112VLP20V (LGA) • Package : 176BGA 0.8 13x13mm; 144TQFP 0.4 16x16mm; 145TLP 0.65 9x9mm • Feature :          
• Gate A20 support, LPC interface (connect with LPC serial Flash memory) x 4ch          
• Power management, support power up sequence          
• Internal 96 Kbytes Flash, internal 4 Kbytes RAM          
• I/O : 13 input; 112 In+out; 32 anti-noise; 40 LED; 76 pull up          
• I2C bus x 2ch (SMBus x 1), Keyboard buffer control unit (PS/2) x 2ch          
• Serial interface : SCIF x 1ch, SCI x 1ch; Smart card / SIM interface          
• Operating frequency: 8 to 25 MHz ; −20 to +75C ; 4-Gbyte address space          
• Minimum instruction execution time: 40.0 ns (for an ADD instruction while system clock φ = 25 MHz and VCC = 3.0 to 3.6 V)          
• On-chip multiplier (16 × 16 → 32 bits), (16 × 16 + 32 → 32 bits)          
• 49 external interrupt pins, 50 internal interrupt sources          
• Two clock generation circuits; H-UDI interface (H-UDI)          
• ADC 10-bit resolution × 12 input channels          
• 8-bit PWM timers A/B × 6 channels (PWMU) ;          
• 16 bits timer pulse unit (TPU)× 3ch; 16-bit cycle measurement timer (TCM) x 3ch ;          
• 16-bit duty period measurement timer (TDP) x 3ch          
• 8bit x 4ch or 16bit x 2ch (TMR); 8bit x 2ch Watchdog timer
 楼主| 发表于 2009-5-14 12:09:15 | 显示全部楼层
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