M3087BFLBGP#U5 Renesas Electronics America, M3087BFLBGP#U5 Datasheet - Page 586

• Manufacturer Part Number: M3087BFLBGP#U5
• Description: IC M32C/87 MCU FLASH 144LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M32C/80r

Specifications of M3087BFLBGP#U5

• Core Processor: M32C/80
• Core Size: 16/32-Bit
• Speed: 32MHz
• Connectivity: EBI/EMI, I²C, IEBus, IrDA, SIO, UART/USART
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 121
• Program Memory Size: 1MB (1M x 8)
• Program Memory Type: FLASH
• Ram Size: 48K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 34x10b, D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 144-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: -

M32C/87 Group (M32C/87, M32C/87A, M32C/87B)
REJ09B0180-0151 Rev.1.51 Jul 31, 2008
Page 562 of 587
28.5.4.2
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The MCU cannot enter stop mode if a low-level (“L”) signal is applied to the NMI pin. Apply an “H” signal
to enter stop mode.
To exit stop mode by reset, apply an “L” signal to RESET pin until a main clock oscillation stabilizes.
If using the NMI interrupt to exit stop mode, use the following procedure to set the CM10 bit in the CM1
register to 1 (all clocks stopped).
(Technical update: TN-16C-127A/EA)
When entering stop mode, the instructions following CM10 = 1 instruction are stored into the instruction
queue, and the program stops. When stop mode is exited, the instruction lined in the queue is executed
before the exit interrupt routine is handled. Insert a jmp.b instruction as follows after the instruction to set
the CM10 bit to 1.
(Technical update: TN-16C-124A/EA)
(1) Exit stop mode using the NMI interrupt.
(2) Generate a dummy interrupt.
(3) Set the CM10 bit to 1 (all clocks stopped).
e.g.,
LABEL_001:
Stop Mode
int
bset
/*dummy interrupt routine*/
dummy
reit
fset I
bset 0, cm1
jmp.b LABEL_001
nop
nop
nop
nop
mov.b #0, prcr
#63
CM1
.
.
.
; dummy interrupt
; all clocks stopped
; I flag is set to 1
; all clocks stopped (stop mode)
; jmp.b instruction executed (no instruction between jmp.b and LABEL.)
; nop(1)
; nop(2)
; nop(3)
; nop(4)
; protection set
28. Usage Notes