MC9S12NE64CPV Freescale Semiconductor, MC9S12NE64CPV Datasheet - Page 148

• Manufacturer Part Number: MC9S12NE64CPV
• Description: IC MCU 25MHZ ETHERNT/PHY 112LQFP
• Manufacturer: Freescale Semiconductor
• Series: HCS12r

Specifications of MC9S12NE64CPV

• Mfg Application Notes: MC9S12NE64 Integrated Ethernet Controller Implementing an Ethernet Interface with the MC9S12NE64 Web Server Development with MC9S12NE64 and Open TCP
• Core Processor: HCS12
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: EBI/EMI, Ethernet, I²C, SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 2.375 V ~ 3.465 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 112-LQFP
• Data Bus Width: 16 bit
• Data Ram Size: 8 KB
• Interface Type: I2C, SCI, SPI
• Maximum Clock Frequency: 25 MHz
• Number Of Programmable I/os: 70
• Number Of Timers: 16 bit
• Operating Supply Voltage: - 0.3 V to + 3 V
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 65 C
• On-chip Adc: 10 bit
• For Use With: EVB9S12NE64E - BOARD EVAL FOR 9S12NE64DEMO9S12NE64E - DEMO BOARD FOR 9S12NE64
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: No RoHS Version Available

Chapter 4 Clocks and Reset Generator (CRGV4)
4.3.2.4
This register provides CRG status bits and flags.
Read: anytime
Write: refer to each bit for individual write conditions
148
1. PORF is set to 1 when a power-on reset occurs. Unaffected by system reset.
2. LVRF is set to 1 when a low-voltage reset occurs. Unaffected by system reset.
LOCKIF
TRACK
Reset
PORF
LOCK
Field
LVRF
RTIF
7
6
5
4
3
2
W
R
RTIF
Real-Time Interrupt Flag — RTIF is set to 1 at the end of the RTI period. This flag can only be cleared by writing
a 1. Writing a 0 has no effect. If enabled (RTIE = 1), RTIF causes an interrupt request.
0 RTI time-out has not yet occurred.
1 RTI time-out has occurred.
Power-on Reset Flag — PORF is set to 1 when a power-on reset occurs. This flag can only be cleared by writing
a 1. Writing a 0 has no effect.
0 Power-on reset has not occurred.
1 Power-on reset has occurred.
Low-Voltage Reset Flag — If low voltage reset feature is not available (see the device overview chapter), LVRF
always reads 0. LVRF is set to 1 when a low voltage reset occurs. This flag can only be cleared by writing a 1.
Writing a 0 has no effect.
0 Low voltage reset has not occurred.
1 Low voltage reset has occurred.
PLL Lock Interrupt Flag — LOCKIF is set to 1 when LOCK status bit changes. This flag can only be cleared by
writing a 1. Writing a 0 has no effect.If enabled (LOCKIE = 1), LOCKIF causes an interrupt request.
0 No change in LOCK bit.
1 LOCK bit has changed.
Lock Status Bit — LOCK reflects the current state of PLL lock condition. This bit is cleared in self-clock mode.
Writes have no effect.
0 PLL VCO is not within the desired tolerance of the target frequency.
1 PLL VCO is within the desired tolerance of the target frequency.
Track Status Bit — TRACK reflects the current state of PLL track condition. This bit is cleared in self-clock mode.
Writes have no effect.
0 Acquisition mode status.
1 Tracking mode status.
CRG Flags Register (CRGFLG)
0
7
= Unimplemented or Reserved
Note 1
PORF
6
Figure 4-7. CRG Flag Register (CRGFLG)
Table 4-2. CRGFLG Field Descriptions
Note 2
LVRF
MC9S12NE64 Data Sheet, Rev. 1.1
5
LOCKIF
0
4
Description
LOCK
0
3
TRACK
0
2
Freescale Semiconductor
SCMIF
0
1
SCM
0
0