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CAP1298 Datasheet(PDF) 61 Page - Microchip Technology |
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CAP1298 Datasheet(HTML) 61 Page - Microchip Technology |
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61 / 68 page  2013-2015 Microchip Technology Inc. DS00001571B-page 61 CAP1298 APPENDIX A: DEVICE DELTA A.1 Delta from CAP1128 / CAP1188 to CAP1298 1. Revision ID set to 00h. 2. Pinout changed. RESET, WAKE, and ADDR_COMM pins removed. LED pins removed. SPI pins / muxing also removed. Added GND pin as ground slug is no longer used for ground connection. 3. Reduced package size from a 20-pin 4mm x 4mm QFN to a 16-pin 3mm x 3mm QFN. 4. Added Power Button feature (see Section 4.6, "Power Button"). 5. Added ACAL_FAIL bit to flag analog calibration failures (see Section 5.2, "Status Registers") and ACAL_- FAIL_INT bit to control analog calibration failure interrupts (see Section 5.6, "Configuration Registers"). 6. Added BC_OUT bit to flag calibration failures regarding base counts out of limit (see Section 5.2, "Status Regis- ters") and BC_OUT_RECAL and BC_OUT_INT bit to control base count out of limit behavior and interrupts (see Section 5.6, "Configuration Registers"). Added Base Count Out of Limit Register to indicate which sensor inputs have base counts outside the operating range (see Section 5.17, "Base Count Out of Limit Register"). 7. New Combo state has been added which allows some sensors programmed to use the Active state settings and other sensors programmed to use the Standby state settings to function at the same time (see Section 4.3.1.3, "Combo State Sensing Settings"). 8. Added an option for a signal guard that is overloaded with the CS5 pin. This signal guard is configured to power a ground shield for improved signal in certain applications (see Section 4.5.1, "Signal Guard"). 9. Increased supply voltage range for 5V operation. 10. Increased operating temperature range from 0°C - 85°C to -40°C to 125°C. 11. LEDs removed. 12. SMBus address fixed at 0101_000(r/w). 13. Removed SPI communications protocol option. 14. Removed RESET pin function. 15. Removed WAKE pin function. 16. Removed ALERT pin configuration. 17. Register set changes are shown in Table A-1, "Register Delta". TABLE A-1: REGISTER DELTA Address Register Delta Delta Default 00h Page 26 Added bits - Main Control Register Added C_GAIN[1:0] and COMBO bits. Changed function of GAIN[1:0] bits if COMBO bit is set. 00h 02h Page 28 Added bits - General Status Register Added bit 4 PWR for new Power Button feature. Added bit 5 ACAL_FAIL to indicate analog calibration failure. Added bit 6 BC_OUT. Removed bit 4 LED status. 00h 04h Removed - LED Status Register removed register n/a 20h Page 32 Removed bit - Configuration Register Removed bit 6 WAKE_CFG. 20h 26h Page 38 Renamed Calibration Activate and Status Register and added functionality In addition to forcing a calibration, the register also indicates the status of calibration for each sensor input. 00h 29h Page 40 New - Signal Guard Enable Register new register for Signal Guard feature 00h |
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