MC68F375BGMZP33 Freescale Semiconductor, MC68F375BGMZP33 Datasheet - Page 113

• Manufacturer Part Number: MC68F375BGMZP33
• Description: IC MPU 32BIT 33MHZ 217-PBGA
• Manufacturer: Freescale Semiconductor

Specifications of MC68F375BGMZP33

• Processor Type: M683xx 32-Bit
• Speed: 33MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 217-PBGA
• Processor Series: M683xx
• Core: CPU32
• Data Bus Width: 32 bit
• Program Memory Type: Flash
• Program Memory Size: 256 KB
• Data Ram Size: 10 KB
• Interface Type: SPI, SCI, CAN
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 48
• Number Of Timers: 16
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 16 Channel
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Features: -
• Lead Free Status / Rohs Status: No

PITR — Periodic Interrupt Timer Register
PICR — Periodic Interrupt Control Register
4.4.9.2 Periodic Interrupt Timer Register
The PITR contains the count value for the periodic timer. This register can be read or written at any time.
4.5 External Bus Interface
MC68F375
REFERENCE MANUAL
MSB
MSB
Bit(s)
Bit(s)
15:11
10:8
15
15:9
15
7:0
0
0
7:0
0
0
RESET:
RESET:
8
The external bus interface (EBI) transfers information between the internal MCU bus
and external devices.
peripherals.
The external bus has 24 address lines and 16 data lines. The EBI provides dynamic
sizing between 8-bit and 16-bit data accesses. It supports byte, word, and long-word
transfers. Port width is the maximum number of bits accepted or provided by the exter-
nal memory system during a bus transfer. Widths of eight and 16 bits are accessed
through the use of asynchronous cycles controlled by the size (SIZ1 and SIZ0) and
14
14
0
0
0
0
PIRQL
Name
Name
PITM
PTP
PIV
—
—
13
13
0
0
0
0
Reserved
Periodic interrupt request level. This field determines the priority of periodic interrupt requests.
A value of 0b000 disables PIT interrupts.
Periodic interrupt vector. This field specifies the periodic interrupt vector number supplied by the
SCIM2 when the CPU32 acknowledges an interrupt request.
Reserved
Periodic timer prescaler
0 = Periodic timer clock not prescaled.
1 = Periodic timer clock prescaled by a value of 512.
Periodic interrupt timing modulus. This field determines the periodic interrupt rate.
12
12
0
0
0
0
SINGLE-CHIP INTEGRATION MODULE 2 (SCIM2E)
Freescale Semiconductor, Inc.
11
11
0
0
0
0
For More Information On This Product,
Figure 4-9
Table 4-15 PICR Bit Descriptions
Table 4-16 PITR Bit Descriptions
10
10
0
0
0
PIRQL[2:0]
Go to: www.freescale.com
9
0
0
9
0
Rev. 25 June 03
shows a basic system with external memory and
MOD-
PTP
CLK
8
0
8
7
0
7
0
Description
Description
6
0
6
0
5
0
5
0
4
0
PIV[7:0]
PITM[7:0]
4
0
3
1
3
0
2
1
2
0
0xYF FA24
0xYF FA22
MOTOROLA
1
1
1
0
LSB
LSB
4-31
0
1
0
0