MC908AZ32ACFU Freescale Semiconductor, MC908AZ32ACFU Datasheet - Page 254

• Manufacturer Part Number: MC908AZ32ACFU
• Description: IC MCU 32K FLASH 8.4MHZ 64-QFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC908AZ32ACFU

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: CAN, SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 40
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 15x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

I/O Ports
Figure 23-16
When bit DDREx is a logic 1, reading address $0008 reads the PTEx data latch. When bit DDREx is a
logic 0, reading address $0008 reads the voltage level on the pin. The data latch can always be written,
regardless of the state of its data direction bit.
254
shows the port E I/O logic.
X = don’t care
Hi-Z = high impedance
1. Writing affects data register, but does not affect input.
DDRE
Bit
0
1
READ DDRE ($000C)
WRITE DDRE ($000C)
WRITE PTE ($0008)
READ PTE ($0008)
PTE
Bit
X
X
Table 23-5. Port E Pin Functions
RESET
MC68HC908AZ32A Data Sheet, Rev. 2
Figure 23-16. Port E I/O Circuit
Input, Hi-Z
I/O Pin
Output
Mode
Table 23-5
DDREx
PTEx
Accesses to
Read/Write
DDRE[7:0]
DDRE[7:0]
DDRE
summarizes the operation of the port E pins.
PTE[7:0]
Read
Pin
Accesses to PTE
PTE[7:0]
PTE[7:0]
Write
Freescale Semiconductor
PTEx
(1)