M306N5FCTFP Renesas Electronics America, M306N5FCTFP Datasheet - Page 70
![IC M16C MCU FLASH 100QFP](/photos/12/21/122166/qfp100-g1_pkg_sml.jpg)
M306N5FCTFP
Manufacturer Part Number
M306N5FCTFP
Description
IC M16C MCU FLASH 100QFP
Manufacturer
Renesas Electronics America
Series
M16C™ M16C/6Nr
Datasheets
1.M30622SAFPU5.pdf
(308 pages)
2.M306N5FCTFPUK.pdf
(90 pages)
3.M306N5FCTFPU0.pdf
(408 pages)
Specifications of M306N5FCTFP
Core Processor
M16C/60
Core Size
16-Bit
Speed
20MHz
Connectivity
CAN, I²C, IEBus, SIO, UART/USART
Peripherals
DMA, WDT
Number Of I /o
87
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
5K x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 26x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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M16C/6N Group (M16C/6N5)
Rev.2.40
REJ09B0011-0240
Figure 8.2 CM0 Register
NOTES:
System Clock Control Register 0
b7
1. Rewrite this register after setting the PRC0 bit in the PRCR register to 1 (write enabled).
2. The fC32 clock does not stop. In low-speed or low power dissipation mode, do not set this bit to 1 (peripheral
3. The CM03 bit is set to 1 (high) while the CM04 bit is set to 0 (I/O port) or when entering stop mode.
4. To use a sub clock, set this bit to 1. Also make sure ports P8_6 and P8_7 are directed for input, with no
5. This bit is provided to stop the main clock when the low power dissipation mode or on-chip oscillator low
6. To use the main clock as the clock source for the CPU clock, set bits as follows:
7. When the CM21 bit = 0 (on-chip oscillator stops) and the CM05 bit = 1 (main clock stops), the CM06 bit is
8. During external clock input, set the CM05 bit to 0 (oscillate).
9. When the CM05 bit is set to 1, the XOUT pin is held "H". Because the on-chip feedback resistor remains
10. When entering stop mode from high-speed or medium-speed mode, on-chip oscillator mode or on-chip
11. After setting the CM04 bit to 1 (XCIN-XCOUT oscillator function), wait until the sub clock oscillates stably
12. To return from on-chip oscillator mode to high-speed or medium-speed mode, set bits CM06 and CM15 to 1.
Apr 14, 2006
b6
clock stops in wait mode).
pull-ups.
power dissipation mode is selected. This bit cannot be used for detection as to whether the main clock stops
or not. To stop the main clock, set bits as follows:
(a) Set the CM07 bit to 1 (sub clock selected) or the CM21 bit in the CM2 register to 1 (on-chip oscillator
(b) Set the CM20 bit in the CM2 register to 0 (oscillation stop, re-oscillation detection function disabled).
(c) Set the CM05 bit to 1 (stop).
(a) Set the CM05 bit to 0 (oscillate).
(b) Wait until the main clock oscillation stabilizes.
(c) Set bits CM11, CM21, and CM07 to 0.
fixed to 1 (divide-by-8 mode) and the CM15 bit is fixed to 1 (drive capability high).
connected, the XIN pin is pulled "H" to the same level as XOUT via the feedback resistor.
oscillator low power dissipation mode, the CM06 bit is set to 1 (divide-by-8 mode).
before switching the CM07 bit from 0 to 1 (sub clock).
b5
selected) with the sub clock stably oscillating.
b4
b3
b2
page 48 of 372
b1
b0
Bit Symbol
CM00
CM01
CM02
CM03
CM04
CM05
CM06
CM07
Symbol
CM0
Clock output function
select bits
(Valid only in single-chip
mode)
WAIT mode peripheral
function clock stop bit
XCIN-XCOUT drive
capacity select bit
Port XC select bit
Main clock stop bit
Main clock division select
bit 0
System clock select
bit
(1)
(6) (11)
(7) (10) (12)
Bit Name
Address
0006h
(3)
(3)
(5) (6) (7)
0 0 : I/O port P5_7
0 1 : Output fC
1 0 : Output f8
1 1 : Output f32
0 : Peripheral function clock does
1 : Peripheral function clock stops
0 : LOW
1 : HIGH
0 : I/O port P8_6, P8_7
1 : XCIN-XCOUT oscillation
0 : On
1 : Off
0 : Bits CM16 and CM17 enabled
1 : Divide-by-8 mode
0 : Main clock, PLL clock,
1 : Sub clock
b1 b0
After Reset
01001000b
function
not stop in wait mode
in wait mode
or on-chip oscillator clock
(8) (9)
(4)
Function
(2)
8. Clock Generation Circuit
RW
RW
RW
RW
RW
RW
RW
RW
RW
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