Datasheet
Table Of Contents
- 1 Hardware Description
- 1.1 Hardware Overview
- 1.2 Analog Front End (AFE)
- 1.3 Digital Computation Engine (CE)
- 1.4 80515 MPU Core
- 1.4.1 Memory Organization and Addressing
- 1.4.2 Special Function Registers (SFRs)
- 1.4.3 Generic 80515 Special Function Registers
- 1.4.4 Special Function Registers (SFRs) Specific to the 71M6531D/F and 71M6532D/F
- 1.4.5 Instruction Set
- 1.4.6 UARTs
- 1.4.7 Timers and Counters
- 1.4.8 WD Timer (Software Watchdog Timer)
- 1.4.9 Interrupts
- 1.5 On-Chip Resources
- 1.5.1 Oscillator
- 1.5.2 Internal Clocks
- 1.5.3 Real-Time Clock (RTC)
- 1.5.4 Temperature Sensor
- 1.5.5 Physical Memory
- 1.5.6 Optical Interface
- 1.5.7 Digital I/O – 71M6531D/F
- 1.5.8 Digital I/O – 71M6532D/F
- 1.5.9 Digital IO – Common Characteristics for 71M6531D/F and 71M6532D/F
- 1.5.10 LCD Drivers – 71M6531D/F
- 1.5.11 LCD Drivers – 71M6532D/F
- 1.5.12 LCD Drivers – Common Characteristics for 71M6531D/F and 71M6532D/F
- 1.5.13 Battery Monitor
- 1.5.14 EEPROM Interface
- 1.5.15 SPI Slave Port
- 1.5.16 Hardware Watchdog Timer
- 1.5.17 Test Ports (TMUXOUT pin)
- 2 Functional Description
- 3 Application Information
- 3.1 Connection of Sensors
- 3.2 Connecting 5-V Devices
- 3.3 Temperature Measurement
- 3.4 Temperature Compensation
- 3.5 Connecting LCDs
- 3.6 Connecting I2C EEPROMs
- 3.7 Connecting Three-Wire EEPROMs
- 3.8 UART0 (TX/RX)
- 3.9 Optical Interface (UART1)
- 3.10 Connecting the V1 Pin
- 3.11 Connecting the Reset Pin
- 3.12 Connecting the Emulator Port Pins
- 3.13 Connecting a Battery
- 3.14 Flash Programming
- 3.15 MPU Firmware
- 3.16 Crystal Oscillator
- 3.17 Meter Calibration
- 4 Firmware Interface
- 4.1 I/O RAM and SFR Map – Functional Order
- 4.2 I/O RAM Description – Alphabetical Order
- 4.3 CE Interface Description
- 5 Electrical Specifications
- 5.1 Absolute Maximum Ratings
- 5.2 Recommended External Components
- 5.3 Recommended Operating Conditions
- 5.4 Performance Specifications
- 5.4.1 Input Logic Levels
- 5.4.2 Output Logic Levels
- 5.4.3 Power-Fault Comparator
- 5.4.4 Battery Monitor
- 5.4.5 Supply Current
- 5.4.6 V3P3D Switch
- 5.4.7 2.5 V Voltage Regulator
- 5.4.8 Low-Power Voltage Regulator
- 5.4.9 Crystal Oscillator
- 5.4.10 LCD DAC
- 5.4.11 LCD Drivers
- 5.4.12 Optical Interface
- 5.4.13 Temperature Sensor
- 5.4.14 VREF
- 5.4.15 ADC Converter, V3P3A Referenced
- 5.5 Timing Specifications
- 5.6 Typical Performance Data
- 5.7 71M6531D/F Package
- 5.8 71M6532D/F Package
- 5.9 Pin Descriptions
- 6 Ordering Information
- 7 Related Information
- 8 Contact Information
- Appendix A: Acronyms
- Appendix B: Revision History
FDS 6531/6532 005 Data Sheet 71M6531D/F-71M6532D/F
Rev 2 31
Table 25: The IEN1 Bit Functions (SFR 0xB8)
Bit
Symbol
Function
IEN1[7]
–
Not used.
IEN1[6]
–
Not used.
IEN1[5]
EX6
EX6 = 0 disables external interrupt 6: XFER_BUSY, RTC_1SEC, WD_NROVF
IEN1[4]
EX5
EX5 = 0 disables external interrupt 5: EEPROM_BUSY
IEN1[3]
EX4
EX4 = 0 disables external interrupt 4: PLL_OK (rise), PLL_OK (fall)
IEN1[2]
EX3
EX3 = 0 disables external interrupt 3: CE_BUSY
IEN1[1]
EX2
EX2 = 0 disables external interrupt 2: FWCOL0, FWCOL1, SPI
IEN1[0]
–
Not Used.
Table 26: The IEN2 Bit Functions (SFR 0x9A)
Bit
Symbol
Function
IEN2[0]
ES1
ES1 = 0 disables the serial channel 1 interrupt.
Table 27: TCON Bit Functions (SFR 0x88)
Bit
Symbol
Function
TCON[7]
TF1
Timer 1 overflow flag.
TCON[6]
TR1
Not used for interrupt control.
TCON[5]
TF0
Timer 0 overflow flag.
TCON[4]
TR0
Not used for interrupt control.
TCON[3]
IE1
External interrupt 1 flag.
TCON[2] IT1
External interrupt 1 type control bit:
0 = interrupt on low level.
1 = interrupt on falling edge.
TCON[1]
IE0
External interrupt 0 flag
TCON[0] IT0
External interrupt 0 type control bit:
0 = interrupt on low level.
1 = interrupt on falling edge.
Table 28: The T2CON Bit Functions (SFR 0xC8)
Bit
Symbol
Function
T2CON[7]
–
Not used.
T2CON[6] I3FR
Polarity control for external interrupt 3: CE_BUSY
0 = falling edge.
1 = rising edge.
T2CON[5] I2FR
Polarity control for external interrupt 2: FWCOL0, FWCOL1, SPI
0 = falling edge.
1 = rising edge.
T2CON[4:0]
–
Not used.
Table 29: The IRCON Bit Functions (SFR 0xC0)
Bit
Symbol
Function
IRCON[7]
–
Not used
IRCON[6]
–
Not used
IRCON[5]
IEX6
1 = External interrupt 6 occurred and has not been cleared.
IRCON[4]
IEX5
1 = External interrupt 5 occurred and has not been cleared.
IRCON[3]
IEX4
1 = External interrupt 4 occurred and has not been cleared.
IRCON[2]
IEX3
1 = External interrupt 3 occurred and has not been cleared.