DF3052BX25V Renesas Electronics America, DF3052BX25V Datasheet - Page 162

• 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
Wait Mode in Areas Where Wait-State Controller is Disabled: External three-state access
areas in which the wait-state controller is disabled (ASTn = 1, WCEn = 0) operate in pin wait
mode 0. The other wait modes are unavailable. The settings of bits WMS1 and WMS0 are ignored
in these areas.
Rev. 3.00 Mar 21, 2006 page 132 of 814
REJ09B0302-0300
Read
access
Write
access
Note:
Pin Wait Mode 0
Wait states can only be inserted by WAIT pin control. During access to an external three-state-
access area, if the WAIT pin is low at the fall of the system clock ( ) in the T
state (T
WAIT signal goes high. Figure 6.12 shows the timing.
*
Arrows indicate time of sampling of the
W
WAIT
Address bus
AS
RD
Data bus
HWR
Data bus
) is inserted. If the WAIT pin remains low, wait states continue to be inserted until the
, LWR
pin
T
1
Figure 6.12 Pin Wait Mode 0
T
WAIT
2
*
pin.
External address
Inserted by
Write data
T
W
*
WAIT
T
signal
W
*
Read data
2
state, a wait
T
3