M306N4FGTFP Renesas Electronics America, M306N4FGTFP Datasheet - Page 71

• Manufacturer Part Number: M306N4FGTFP
• Description: IC M16C MCU FLASH 100QFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/6Nr

Specifications of M306N4FGTFP

• Core Processor: M16C/60
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: CAN, I²C, IEBus, SIO, UART/USART
• Peripherals: DMA, WDT
• Number Of I /o: 85
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 10K 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: -

M16C/6N Group (M16C/6N4)
Rev.2.40
REJ09B0009-0240
Table 7.7 External Bus Status When Internal Area Accessed
Figure 7.6 CSE Register
________
7.2.9 External Bus Status when Internal Area Accessed
A0 to A19
D0 to D15 When read High-impedance
_____
RD, WR, WRL, WRH
BHE
_______
CS0 to CS3
ALE
7.2.10 Software Wait
Table 7.7 shows the External Bus Status When Internal Area Accessed.
Software wait states can be inserted by using the PM17 bit in the PM1 register, bits CS0W to CS3W in the
CSR register, and the CSE register. The SFR area is unaffected by these control bits. This area is always
accessed in 2 BCLK or 3 BCLK cycles as determined by the PM20 bit in the PM2 register. See Table 7.8
Bit and Bus Cycle Related to Software Wait for details.
To use the RDY signal, set the corresponding bit of bits CS3W to CS0W to 0 (with wait state).
Figure 7.6 shows the CSE Register. Table 7.8 shows the Software Wait Related Bits and Bus Cycles.
Figures 7.7 and 7.8 show the Typical Bus Timings Using Software Wait.
Chip Select Expansion Control Register
NOTE:
______
b7
Apr 14, 2006
1. Set the CSiW bit (i = 0 to 3) in the CSR register to 0 (with wait state) before writing to bits CSEi1W to CSEi0W.
_______
b6
If the CSiW bit needs to be set to 1 (without wait state), set bits CSEi1W to CSEi0W to 00b before setting it.
Item
________
b5
When write Output data
________
b4
_________
b3
page 47 of 376
b2
b1
________
Address output
RD, WR, WRL, WRH output
BHE output
Output “H”
Output “L”
_____
b0
Bit Symbol
______
CSE00W
CSE01W
CSE10W
CSE11W
CS20WE
CSE21W
CSE30W
CSE31W
Symbol
CSE
SFR Accessed
_________ __________
CS0 wait expansion bits
CS1 wait expansion bits
CS2 wait expansion bits
CS3 wait expansion bits
Address
001Bh
Bit Name
Maintain status before accessed address
of external area or SFR
High-impedance
Undefined
Output “H”
Maintain status before accessed status of
external area or SFR
Output “H”
Output “L”
(1)
(1)
(1)
(1)
After Reset
Internal ROM, Internal RAM Accessed
00h
b1 b0
b3 b2
b5 b4
b7 b6
0 0 : 1 wait
0 1 : 2 waits
1 0 : 3 waits
1 1 : Do not set a value
0 0 : 1 wait
0 1 : 2 waits
1 0 : 3 waits
1 1 : Do not set a value
0 0 : 1 wait
0 1 : 2 waits
1 0 : 3 waits
1 1 : Do not set a value
0 0 : 1 wait
0 1 : 2 waits
1 0 : 3 waits
1 1 : Do not set a value
Function
RW
RW
RW
RW
RW
RW
RW
RW
RW
7. Bus