XC705B32CFNE Freescale Semiconductor, XC705B32CFNE Datasheet - Page 112

• Manufacturer Part Number: XC705B32CFNE
• Description: IC MCU 2.1MHZ 32K OTP 52-PLCC
• Manufacturer: Freescale Semiconductor
• Series: HC05r

Specifications of XC705B32CFNE

• Core Processor: HC05
• Core Size: 8-Bit
• Speed: 2.1MHz
• Connectivity: SCI
• Peripherals: POR, WDT
• Number Of I /o: 32
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: OTP
• Eeprom Size: 256 x 8
• Ram Size: 528 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x8b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 52-PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

9
Freescale
9-8
external interrupt?
Execute instruction
internal interrupt?
internal interrupt?
Is I-bit set?
Fetch next
instruction
Reset
Timer
IRQ
SCI
Figure 9-3 Interrupt flow chart
RESETS AND INTERRUPTS
Clear IRQ request
latch
Load PC from:
IRQ:
Timer IC: $1FF8-$1FF9
Timer OC: $1FF6-$1FF7
Timer OVF:$1FF4-$1FF5
SCI:
Complete interrupt routine
and execute RTI
PC, X, A, CC
Set I-bit
$1FFA-$1FFB
$1FF2-$1FF3
Stack
MC68HC05B6
Rev. 4.1