D13002X16V Renesas Electronics America, D13002X16V Datasheet - Page 154

• Manufacturer Part Number: D13002X16V
• Description: MCU 3/5V 0K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of D13002X16V

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 16MHz
• Connectivity: SCI
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 38
• Program Memory Type: ROMless
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• 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: -
• Program Memory Size: -

6.4.3
After driving the BREQ pin low, hold it low until BACK goes low. If BREQ returns to the high
level before BACK goes low, the bus arbiter may operate incorrectly.
To terminate the external-bus-released state, hold the BREQ signal high for at least three states.
If BREQ is high for too short an interval, the bus arbiter may operate incorrectly.
•
If contention occurs between a transition to software standby mode and a bus request from an
external bus master, the bus may be released for one state just before the transition to
software standby mode (see figure 6-23). When using software standby mode, clear the
BRLE bit to 0 in BRCR before executing the SLEEP instruction.
Figure 6-23 Contention between Bus-Released State and Software Standby Mode
BREQ Input Timing
ø
BREQ
BACK
Address
bus
strobe
Bus-released state
137
Software standby mode