71M6521DEIM-DB Maxim Integrated Products, 71M6521DEIM-DB Datasheet - Page 132

• Manufacturer Part Number: 71M6521DEIM-DB
• Description: Power Management Modules & Development Tools 71M6521DE DEMO BOARD M6521DE DEMO BOARD
• Manufacturer: Maxim Integrated Products

Specifications of 71M6521DEIM-DB

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

SFR (special function register) enable bits must be set to permit any of these interrupts to occur. Likewise, each
interrupt has its own flag bit which is set by the interrupt hardware and is reset automatically by the MPU interrupt
handler (0 through 5). XFER_BUSY and RTC_1SEC, which are OR-ed together, have their own enable and flag bits in
addition to the interrupt 6 enable and flag bits (see Table 6-52), and these interrupts must be cleared by the MPU
software.
Revision 1.7
Enable Bit
EX_XFER
EX_RTC
Interrupt Priority 0 Register (IP0)
Note: OWDS, WDTS are not used for interrupt controls
Interrupt Priority 1 Register (IP1)
EX0
EX1
EX2
EX3
EX4
EX5
EX6
MSB
MSB
-
OWDS
4
5
6
Enable XFER_BUSY interrupt
Enable RTC_1SEC interrupt
Enable external interrupt 0
Enable external interrupt 1
Enable external interrupt 2
Enable external interrupt 3
Enable external interrupt 4
Enable external interrupt 5
Enable external interrupt 6
-
WDTS
© Copyright 2005-2007 TERIDIAN Semiconductor Corporation
Comparator
EEPROM busy
XFER_BUSY OR RTC_1SEC
Description
Table 6-55: Control Bits for External Interrupts
IP1.x
0
0
1
1
IP1.5
Table 6-54: External MPU Interrupts
IP0.5
External interrupt 0
External interrupt 2
Table 6-56: The IP0 Register
Table 6-57: The IP1 Register
UART 1 interrupt
Timer 0 interrupt
Table 6-58: Priority Levels
TERIDIAN Proprietary
IP1.4
IP0.4
IP0.x
0
1
0
1
IP1.3
IP0.3
Level0 (lowest)
Level1
Level2
Level3 (highest)
IE_XFER
Flag Bit
IE_RTC
IEX2
IEX3
IEX4
IEX5
IEX6
IE0
IE1
Priority Level
IP1.2
IP0.2
falling
falling
rising
Polling sequence
IP1.1
XFER_BUSY interrupt flag
71M652X Software User’s Guide
RTC_1SEC interrupt flag
IP0.1
External interrupt 0 flag
External interrupt 1 flag
External interrupt 2 flag
External interrupt 3 flag
External interrupt 4 flag
External interrupt 5 flag
External interrupt 6 flag
Description
automatic
automatic
manual
IP1.0
IP0.0
LSB
LSB
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