DF2238RTF6 Renesas Electronics America, DF2238RTF6 Datasheet - Page 252

• Manufacturer Part Number: DF2238RTF6
• Description: MCU 2.2/3V 256K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2200r

Specifications of DF2238RTF6

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 6MHz
• Connectivity: I²C, SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 72
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 3.6 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: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F2238RTF6; HD64F2238RTF6

Section 7 Bus Controller
7.6.4
When accessing external space, this LSI can extend the bus cycle by inserting one or more wait
states (Tw). There are two ways of inserting wait states: program wait insertion and pin wait
insertion using the WAIT pin.
(1) Program Wait Insertion
Rev. 6.00 Mar. 18, 2010 Page 190 of 982
REJ09B0054-0600
From 0 to 3 wait states can be inserted automatically between the T
individual area basis in 3-state access space, according to the settings of WCRH and WCRL.
Figure 7.17 Bus Timing for 16-Bit 3-State Access Space (3) (Word Access)
Wait Control
Note: n = 7 to 0
Read
Write
Address bus
D15 to D8
D15 to D8
D7 to D0
D7 to D0
HWR
LWR
CSn
RD
AS
φ
T
1
Bus cycle
T
2
Valid
Valid
2
state and T
T
3
Valid
Valid
3
state on an