Maxim Integrated MAXQ Family Users Guide: MAXQ8913 Supplement - Manual (Page 65)

MAXQ Family User’s Guide:
MAXQ8913 Supplement
19-3
The following peripheral registers are used to control the analog-to-digital converter functions.
19.2.1 Analog-to-Digital Converter Status Register (ADST, M4[06h])
Bits 15:12: Reserved
Bits 11:8: ADC Data Available Address Bits (ADDAT[3:0]). These read-only status bits indicate the ADBUF data
buffer location that was last written by the ADC hardware. During a conversion sequence, these bits are updated by
hardware as each conversion is completed and written to the data buffer.
Table 19-2. ADC Control Registers (continued)
Note: Address ADDATA[xxh] refers to reading/writing the ADDATA register with ADCFG:ADIDX[3:0] (ADST[4:0]) set to xxh. For
example, ADBUF[7] is read by setting ADST[4:0] to 00111b and reading the ADDATA register.
*ADCONV cannot be written when PMME = 1 and SWB = 0.
REGISTER ADDRESS FUNCTION
ADCFG[6] ADDATA[16h] ADC Sequence Configuration Register 6
ADCFG[7] ADDATA[17h] ADC Sequence Configuration Register 7
ADBUF[0] ADDATA[00h] ADC Sample Buffer Register 0. Read-only register containing ADC conversion result.
ADBUF[1] ADDATA[01h] ADC Sample Buffer Register 1. Read-only register containing ADC conversion result.
ADBUF[2] ADDATA[02h] ADC Sample Buffer Register 2. Read-only register containing ADC conversion result.
ADBUF[3] ADDATA[03h] ADC Sample Buffer Register 3. Read-only register containing ADC conversion result.
ADBUF[4] ADDATA[04h] ADC Sample Buffer Register 4. Read-only register containing ADC conversion result.
ADBUF[5] ADDATA[05h] ADC Sample Buffer Register 5. Read-only register containing ADC conversion result.
ADBUF[6] ADDATA[06h] ADC Sample Buffer Register 6. Read-only register containing ADC conversion result.
ADBUF[7] ADDATA[07h] ADC Sample Buffer Register 7. Read-only register containing ADC conversion result.
ADBUF[8] ADDATA[08h] ADC Sample Buffer Register 8. Read-only register containing ADC conversion result.
ADBUF[9] ADDATA[09h] ADC Sample Buffer Register 9. Read-only register containing ADC conversion result.
ADBUF[10] ADDATA[0Ah] ADC Sample Buffer Register 10. Read-only register containing ADC conversion result.
ADBUF[11] ADDATA[0Bh] ADC Sample Buffer Register 11. Read-only register containing ADC conversion result.
ADBUF[12] ADDATA[0Ch] ADC Sample Buffer Register 12. Read-only register containing ADC conversion result.
ADBUF[13] ADDATA[0Dh] ADC Sample Buffer Register 13. Read-only register containing ADC conversion result.
ADBUF[14] ADDATA[0Eh] ADC Sample Buffer Register 14. Read-only register containing ADC conversion result.
ADBUF[15] ADDATA[0Fh] ADC Sample Buffer Register 15. Read-only register containing ADC conversion result.
TEMPEN M3[0Ch]
Temperature Sensor Enable Register. Enables/disables the on-board temperature sensor
whose value can be read through ADC channel 6.
Bit # 15 14 13 12 11 10 9 8
Name — — — — ADDAT[3:0]
Reset 0 0 0 0 0 0 0 0
Access r r r r r r r r
Bit # 7 6 5 4 3 2 1 0
Name REFOK ADCONV ADDAI ADCFG ADIDX[3:0]
Reset 0 0 0 0 0 0 0 0
Access r rw* rw rw rw rw rw rw
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