XE8802MI035LF Semtech, XE8802MI035LF Datasheet - Page 117

• Manufacturer Part Number: XE8802MI035LF
• Description: IC DAS 16BIT FLASH 8K 100-LQFP
• Manufacturer: Semtech

Specifications of XE8802MI035LF

• Applications: Sensing Machine
• Core Processor: RISC
• Program Memory Type: FLASH (22 kB)
• Controller Series: XE8000
• Ram Size: 1K x 8
• Interface: SPI, UART
• Number Of I /o: 36
• Voltage - Supply: 2.4 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 100-LQFP
• For Use With: XE8000MP - PROG BOARD AND PROSTART2 CARD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

17.4.2
Figure 17-2 shows a detailed functional diagram of the ZoomingADC™.
In Table 17-10 the configuration of the peripheral registers is detailed. The system has a bank of eight 8-bit
registers: six registers are used to configure the acquisition chain (RegAcCfg0 to 5), and two registers are used
to store the output code of the analog-to-digital conversion (RegAcOutMsb & Lsb). The register coding of the
ADC parameters and performance characteristics are detailed in Section 17.7.
© Semtech 2006
RegAcOutLsb
RegAcOutMsb
Default values:
Default values:
RegAcCfg0
RegAcCfg1
Register
Name
Peripheral Registers
Table 17-10. Peripheral registers to configure the acquisition chain (AC)
IB_AMP_ADC[1:0]
START
Inputs
AC_A
AC_R
7
0
RegACCfg4
RegACCfg5
RegACCfg3
RegACCfg2
RegACCfg1
RegACCfg0
and to store the analog-to-digital conversion (ADC) result
Figure 17-2. ZoomingADC™ detailed functional block diagram
11
0
1
2
3
4
5
6
7
0
1
2
3
SET_NELC[1:0]
6
V
01
5
IN
Power Saving Modes
PGA Enabling
Conversion Start
Nbr of Elementary Cycles
Over-Sampling Ratio
Continuous vs. On-Request
V
IB_AMP_PGA[1:0]
f
XE8802 Sensing Machine Data Acquisition MCU
S
REF
5
PGA1
GD1
2
11
OFF2
PGA2
GD2
4
Bit Position
OUT[15:8]
4
17-5
OUT[7:0]
SET_OSR[2:0]
with ZoomingADC™ and LCD driver
7
010
3
OFF3
7
PGA3
GD3
ADC Busy Flag
Default Settings
Sampling Frequency f
RegACOutMSB
RegACOutLSB
Acquisition Chain
Register Bank
ENABLE[3:0]
2
V
0001
IN,ADC
CONT
ADC
1
0
f
S
8
8
S
TEST
0
0
www.semtech.com