ST7265XEVALMS STMicroelectronics, ST7265XEVALMS Datasheet - Page 54

• Manufacturer Part Number: ST7265XEVALMS
• Manufacturer: STMicroelectronics

Specifications of ST7265XEVALMS

• Lead Free Status / Rohs Status: Supplier Unconfirmed

ST7265x
MISCELLANEOUS REGISTERS (Cont’d)
MISCELLANEOUS REGISTER 2 (MISCR2)
Reset Value: 0000 0000 (00h)
Bits 7:5 = Reserved.
Bits 4:0 = P[4:0] Power Management Bits
These bits are set and cleared by software. They
can be used to switch the on-chip peripherals of
the microcontroller ON or OFF. The registers are
not changed by switching the peripheral OFF and
then ON (contents are frozen while OFF).
0: Peripheral ON (running)
1: Peripheral OFF
MISCELLANEOUS REGISTER 3 (MISCR3)
Read/Write
Reset Value: 0000 0000 (00h)
Bit 7 = WDGHALT Watchdog and HALT Mode
This bit is set and cleared by software. It deter-
mines if a RESET is generated when entering Halt
mode while the Watchdog is active (WDGA bit =1
in the WDGCR register).
Table 16. Miscellaneous Register Map and Reset Values
54/163
1
HALT
WDG
Address
7
0
7
(Hex.)
Bit
P0
P1
P2
P3
P4
4C
4A
49
0
0
MISCR1
Reset Value
MISCR2
Reset Value
MISCR3
Reset Value
Register
Label
0
0
P4
0
WDGHALT
Peripheral
IS31
P3
IS11
Timer
PWM
USB
DTC
7
I2C
0
0
0
0
IS30 PWM1 PWM0
P2
IS10
P1
6
0
0
0
0
0
P0
0
0
MCO
5
0
0
0
0
0
In either case, the Watchdog will not reset the
MCU if a HALT instruction is executed while the
USB is in Suspend mode.
0: If the Watchdog is active, it will reset the MCU if
1: When a HALT instruction is executed, the MCU
Bits 6:4 = Reserved, forced by hardware to 0.
Bits 3:2= IS3[1:0] ei2 Interrupt sensitivity
Interrupt sensitivity, defined using the IS3[1:0] bits,
is applied to the ei2 interrupts (Port C):
These 2 bits must be written only when I1 and I0 of
the CC register are both set to 1 (level 3).
Bit 1 = PWM1 PWM1 Output Control
0: PWM1 Output alternate function disabled (I/O
1: PWM1 Output alternate function enabled
Bit 0 = PWM0 PWM0 Output Control
0: Output alternate function disabled (I/O pin free
1: PWM0 Output alternate function enabled
IS31 IS30
a HALT instruction is executed (unless the USB
is in Suspend mode)
will enter Halt mode (without generating a reset)
even if the Watchdog is active.
0
0
1
1
pin free for general purpose I/O).
for general purpose I/O).
IS21
P4
4
0
0
0
0
0
1
0
1
IS20
IS31
P3
3
0
0
0
External Interrupt Sensitivity
Falling edge & low level
Rising and falling edge
Falling edge only
Rising edge only
IS30
CP1
P2
2
0
0
0
PWM1
CP0
P1
1
0
0
0
PWM0
CPEN
P0
0
0
0
0