M30800SAGP-BL#U5 Renesas Electronics America, M30800SAGP-BL#U5 Datasheet - Page 51

• Manufacturer Part Number: M30800SAGP-BL#U5
• Description: IC M32C/80 MCU ROMLESS 100LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M32C/80r

Specifications of M30800SAGP-BL#U5

• Core Processor: M16C/80
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, IEBus, SIO, UART/USART
• Peripherals: DMA, WDT
• Number Of I /o: 45
• Program Memory Type: ROMless
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 10x10b, D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 100-LQFP
• For Use With: R0K330879S001BE - KIT DEV RSK M32C/87R0K330879S000BE - KIT DEV RSK M32C/87
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

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5. Reset
5.1 Hardware Reset 1
3
. v
J
2
Figure 5.1 Reset Circuit
0
C
Hardware reset 1, software reset, and watchdog timer reset are available to reset the microcomputer.
Pins, the CPU and SFRs are reset by setting the RESET pin. If the supply voltage meets the recommended
operating conditions, all pins are reset when a low-level ("L") signal is applied to the RESET pin (see Table
5.1). The oscillation circuit is also reset and the main clock starts oscillating. The CPU and SFR are reset
when the signal applied to the RESET pin changes "L" to high level ("H"). The microcomputer executes the
program in an address indicated by the reset vector. The internal RAM is not reset. When an "L" signal is
applied to the RESET pin while writing data to the internal RAM, the internal RAM is in an indeterminate
state.
Figure 5.1 shows an example of the reset circuit. Figure 5.2 shows a reset sequence. Table 5.1 lists pin
states while the RESET pin is held "L".
5.1.1 Reset on a Stable Supply Voltage
5.1.2 Power-on Reset
1
9
0 .
8 /
B
(1) Apply an "L" signal to the RESET pin
(2) Provide 20 or more clock cycle inputs into the X
(3) Apply an "H" signal to the RESET pin
(1) Apply an "L" signal to the RESET pin
(2) Raise the supply voltage to the recommended operating level
(3) Insert
(4) Provide 20 or more clock cycle inputs into the X
(5) Apply an "H" signal to the RESET pin
0
0
0
2
7
G
N
1
o
o r
0 -
. v
u
1
p
0
NOTE:
0
RESET
, 1
0
td(P-R)
1. If V
2
____________
0
being turned on or off.
0
____________
5
CC1
ms as wait time for the internal voltage to stabilize
Page 30
>V
V
CC2
CC1
, the V
f o
____________
____________
____________
____________
3
CC2
____________
3
0
V
RESET
0V
0V
CC1
voltage must be lower than that of V
Recommended
operating voltage
0.2V
or below
____________
CC1
IN
IN
pin
pin
0.2V
inputs provided into the X
td(P-R) + 20 or more clock cycle
CC1
CC1
or below
when the power is
___________
IN
pin
5. Reset