S912XET256J2VAGR Freescale Semiconductor, S912XET256J2VAGR Datasheet - Page 185

• Manufacturer Part Number: S912XET256J2VAGR
• Description: 16-bit Microcontrollers - MCU Watchdog OSC/Timer -40 C to + 105 C HCS12X MCU SPI
• Manufacturer: Freescale Semiconductor

Specifications of S912XET256J2VAGR

• Core: HCS12X
• Data Bus Width: 16 bit
• Maximum Clock Frequency: 50 MHz
• Program Memory Size: 256 KB
• Data Ram Size: 16 KB
• On-chip Adc: Yes
• Package / Case: LQFP
• Mounting Style: SMD/SMT
• A/d Bit Size: 12 bit
• A/d Channels Available: 24
• Interface Type: CAN, SCI, SPI
• Maximum Operating Temperature: + 105 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 119
• Number Of Timers: 25
• Program Memory Type: Flash
• Supply Voltage - Max: 1.98 V, 2.9 V, 5.5 V
• Supply Voltage - Min: 1.72 V, 2.7 V, 3.13 V

2.4.4
Ports P, H and J offer pin interrupt capability. The interrupt enable as well as the sensitivity to rising or
falling edges can be individually configured on per-pin basis. All bits/pins in a port share the same interrupt
vector. Interrupts can be used with the pins configured as inputs or outputs.
An interrupt is generated when a bit in the port interrupt flag register and its corresponding port interrupt
enable bit are both set. The pin interrupt feature is also capable to wake up the CPU when it is in STOP or
WAIT mode.
A digital filter on each pin prevents pulses
interrupt. The minimum time varies over process conditions, temperature and voltage
Table
Freescale Semiconductor
2-104).
Pin interrupts
Glitch, filtered out, no interrupt flag set
Valid pulse, interrupt flag set
1. These values include the spread of the oscillator frequency over temper-
Figure 2-108. Interrupt Glitch Filter on Port P, H and J (PPS=0)
Uncertain
ature, voltage and process.
Ignored
Pulse
Valid
MC9S12XE-Family Reference Manual Rev. 1.25
Table 2-104. Pulse Detection Criteria
t
pign
t
pval
3 < t
(Figure
t
t
pulse
pulse
pulse
STOP
uncertain
< 4
≤ 3
≥ 4
2-109) shorter than a specified time from generating an
bus clocks
bus clocks
bus clocks
Unit
Mode
Chapter 2 Port Integration Module (S12XEPIMV1)
t
pign
STOP
< t
t
t
pulse
pulse
pulse
(1)
≤ t
< t
≥ t
pign
pval
pval
(Figure 2-108
and
185