DF3052BX25V Renesas Electronics America, DF3052BX25V Datasheet - Page 164

• Manufacturer Part Number: DF3052BX25V
• Description: MCU 5V 512K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of DF3052BX25V

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 6 Bus Controller
Rev. 3.00 Mar 21, 2006 page 134 of 814
REJ09B0302-0300
Read
access
Write
access
Note:
Pin Auto-Wait Mode
If the WAIT pin is low, the number of wait states (T
inserted.
In pin auto-wait mode, if the WAIT pin is low at the fall of the system clock ( ) in the T
the number of wait states (T
states are inserted even if the WAIT pin remains low. Pin auto-wait mode can be used for an
easy interface to low-speed memory, simply by routing the chip select signal to the WAIT pin.
Figure 6.14 shows the timing when the wait count is 1.
*
Arrows indicate time of sampling of the
WAIT
Address bus
AS
RD
Data bus
HWR
Data bus
, LWR
T
1
Figure 6.14 Pin Auto-Wait Mode
W
External address
) selected by bits WC1 and WC0 are inserted. No additional wait
Write data
T
2
*
Read data
WAIT
T
3
pin.
W
T
1
) selected by bits WC1 and WC0 are
T
External address
2
*
Write data
T
W
Read data
T
3
2
state,