DF2210CUNP24V Renesas Electronics America, DF2210CUNP24V Datasheet - Page 210

• Manufacturer Part Number: DF2210CUNP24V
• Description: MCU 16BIT FLASH 3V 32K 64-QFN
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2200r

Specifications of DF2210CUNP24V

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 24MHz
• Connectivity: SCI, SmartCard, USB
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 37
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 6x10b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 64-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Figure 6.25 shows the timing for transition to the bus-released state.
6.9.1
When MSTPCR is set to H'FFFFFF and transmitted to sleep mode, the external bus release does
not function. To activate the external bus release in sleep mode, do not set MSTPCR to H'FFFFFF.
Rev.7.00 Dec. 24, 2008 Page 154 of 698
REJ09B0074-0700
Address bus
HWR, LWR
Data bus
Bus Release Usage Note
Note : n = 0 to 5
[1]
[2]
[3]
[4]
[5]
BREQ
BACK
CSn
RD
AS
φ
Low level of BREQ pin is sampled at rise of T
BACK pin is driven low at end of CPU read cycle, releasing bus to external bus
master.
BREQ pin state is still sampled in external bus released state.
High level of BREQ pin is sampled.
BACK pin is driven high, ending bus release cycle.
Figure 6.25 Bus-Released State Transition Timing
T
0
CPU cycle
T
Address
1
[1]
Minimum
1 state
T
2
[2]
2
[3]
state.
External bus released state
High impedance
High impedance
High impedance
High impedance
High impedance
High impedance
[4]
CPU
cycle
[5]