HD64F3067RF20 Renesas Electronics America, HD64F3067RF20 Datasheet - Page 715

• Manufacturer Part Number: HD64F3067RF20
• Description: IC H8 MCU FLASH 128K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of HD64F3067RF20

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K 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-QFP
• Package: 100PQFP
• Family Name: H8
• Maximum Speed: 20 MHz
• Operating Supply Voltage: 5 V
• Data Bus Width: 16|32 Bit
• Number Of Programmable I/os: 70
• Interface Type: SCI
• On-chip Adc: 8-chx10-bit
• On-chip Dac: 2-chx8-bit
• Number Of Timers: 7
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

20.6
20.6.1
The module standby function can halt several of the on-chip supporting modules (SCI2, SCI1,
SCI0, the DMAC, 16-bit timer, 8-bit timer, DRAM interface, and A/D converter) independently in
the power-down state. This standby function is controlled by bits MSTPH2 to MSTPH0 in
MSTCRH and bits MSTPL7 to MSTPL0 in MSTCRL. When one of these bits is set to 1, the
corresponding on-chip supporting module is placed in standby and halts at the beginning of the
next bus cycle after the MSTCR write cycle.
20.6.2
When an on-chip supporting module is in module standby, read/write access to its registers is
disabled. Read access always results in H'FF data. Write access is ignored.
20.6.3
When using the module standby function, note the following points.
DMAC: When setting a bit in MSTCR to 1 to place the DMAC in module standby, make sure that
the DMAC is not currently requesting the bus right. If the corresponding bit in MSTCR is set to 1
when a bus request is present, operation of the bus arbiter becomes ambiguous and a malfunction
may occur.
DRAM Interface: When the module standby function is used on the DRAM interface, set the
MSTCR bit to 1 while DRAM space is deselected.
On-Chip Supporting Module Interrupts: Before setting a module standby bit, first disable
interrupts by that module. When an on-chip supporting module is placed in standby by the module
standby function, its registers are initialized, including registers with interrupt request flags.
Pin States: Pins used by an on-chip supporting module lose their module functions when the
module is placed in module standby. What happens after that depends on the particular pin. For
details, see section 8, I/O Ports. Pins that change from the input to the output state require special
care. For example, if SCI1 is placed in module standby, the receive data pin loses its receive data
function and becomes a port pin. If its port DDR bit is set to 1, the pin becomes a data output pin,
and its output may collide with external SCI transmit data. Data collision should be prevented by
clearing the port DDR bit to 0 or taking other appropriate action.
Usage Notes
Module Standby Function
Module Standby Timing
Read/Write in Module Standby
Rev. 4.00 Jan 26, 2006 page 691 of 938
Section 20 Power-Down State
REJ09B0276-0400