MCHC908GR8AVFAE Freescale Semiconductor, MCHC908GR8AVFAE Datasheet - Page 224

• Manufacturer Part Number: MCHC908GR8AVFAE
• Description: IC MCU 8K FLASH 8MHZ 32-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MCHC908GR8AVFAE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 21
• Program Memory Size: 7.5KB (7.5K x 8)
• Program Memory Type: FLASH
• Ram Size: 384 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 6x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 32-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Development Support
224
Function
[Pin No.]
MON08
Monitor
Monitor
Normal
Forced
1. PTA0 must have a pullup resistor to V
2. Communication speed in the table is an example to obtain a baud rate of 9600.
3. External clock is an 9.8304 MHz crystal on OSC1 and OSC2 or a 9.8304 MHz canned oscillator on OSC1.
4. X = don’t care
5. MON08 pin refers to P&E Microcomputer Systems’ MON08-Cyclone 2 by 8-pin connector.
Mode
User
Baud rate using external oscillator is bus frequency / 256.
V
V
V
V
IRQ
V
[6]
TST
or
TST
DD
DD
SS
V
V
RST
RST
V
V
V
[4]
or
TST
or
TST
DD
DD
DD
Table 18-1. Monitor Mode Signal Requirements and Options
Vector
$FFFF
(blank)
$FFFF
Reset
Not
—
X
MC68HC908GR8A • MC68HC908GR4A Data Sheet, Rev. 5
PTA0
COM
[8]
Communi-
X
1
1
cation
Serial
DD
in monitor mode.
PTA1
SSEL
OSC1
[10]
X
0
0
V
NC
NC
NC
NC
NC
NC
DD
MOD0
PTB0
[12]
11
13
15
X
X
1
1
3
5
7
9
Selection
Mode
MOD1
PTB1
[14]
10
12
14
16
X
X
0
2
4
6
8
GND
RST
IRQ
PTA0
PTA1
PTB0
PTB1
NC
OFF
OFF
PLL
—
X
Disabled
Disabled
Enabled
COP
—
External
9.8304
9.8304
Clock
OSC1
MHz
MHz
[13]
X
Communication
Freescale Semiconductor
Frequency
Speed
2.4576
2.4576
MHz
MHz
Bus
—
X
Baud
Rate
9600
9600
—
X