D13002X16V Renesas Electronics America, D13002X16V Datasheet - Page 167
D13002X16V
Manufacturer Part Number
D13002X16V
Description
MCU 3/5V 0K 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Hr
Datasheet
1.D13002F16V.pdf
(702 pages)
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
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
D13002X16V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Table 7-4 Area 3 Settings, DRAM Access Cycles, and Refresh Cycles
Area 3 Settings
2-state-access area
(AST3 = 0)
3-state-access area
(AST3 = 1)
To insert refresh cycles, set the RCYCE bit to 1 in RFSHCR. Figure 7-3 shows the state
transitions for execution of refresh cycles.
When the first refresh request occurs after exit from the reset state or standby mode, the refresh
controller does not execute a refresh cycle, but goes into the refresh request pending state. Note
this point when using a DRAM that requires a refresh cycle for initialization.
When a refresh request occurs in the refresh request pending state, the refresh controller acquires
the bus right, then executes a refresh cycle. If another refresh request occurs during execution of
the refresh cycle, it is ignored.
Note:
Refresh
request *
Refresh
request *
*
A refresh request is ignored if it occurs while the refresh controller is requesting the
bus right or executing a refresh cycle.
Figure 7-3 State Transitions for Refresh Cycle Execution
Read/Write Cycle by CPU or DMAC
• 3 states
• Wait states cannot be inserted
• 3 states
• Wait states can be inserted
Exit from reset or standby mode
Refresh request pending state
Executing refresh cycle
Requesting bus right
150
Refresh request
Refresh request
Bus granted
Refresh Cycle
• 3 states
• Wait states cannot be inserted
• 3 states
• Wait states can be inserted
End of refresh
cycle
*
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