DF2328BVF25V Renesas Electronics America, DF2328BVF25V Datasheet - Page 196
DF2328BVF25V
Manufacturer Part Number
DF2328BVF25V
Description
IC H8S MCU FLASH 256K 128QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2300r
Datasheets
1.HEWH8E10A.pdf
(19 pages)
2.D12312SVTE25V.pdf
(341 pages)
3.D12322RVF25V.pdf
(1304 pages)
Specifications of DF2328BVF25V
Core Processor
H8S/2000
Core Size
16-Bit
Speed
25MHz
Connectivity
SCI, SmartCard
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
87
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
128-QFP
For Use With
EDK2329 - DEV EVALUATION KIT H8S/2329
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Other names
HD64F2328BVF25V
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF2328BVF25V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 196 of 1304
- Download datasheet (8Mb)
Section 6 Bus Controller
6.2.8
RTCNT is an 8-bit readable/writable up-counter.
RTCNT counts up using the internal clock selected by bits CKS2 to CKS0 in DRAMCR.
When RTCNT matches RTCOR (compare match), the CMF flag in DRAMCR is set to 1 and
RTCNT is cleared to H'00. If the RFSHE bit in DRAMCR is set to 1 at this time, a refresh cycle is
started. Also, if the CMIE bit in DRAMCR is set to 1, a compare match interrupt (CMI) is
generated.
RTCNT is initialized to H'00 by a reset and in hardware standby mode. It is not initialized in
software standby mode.
Note: In the H8S/2321 this register is reserved and must not be accessed.
6.2.9
RTCOR is an 8-bit readable/writable register that sets the period for compare match operations
with RTCNT.
The values of RTCOR and RTCNT are constantly compared, and if they match, the CMF flag in
DRAMCR is set to 1 and RTCNT is cleared to H'00.
RTCOR is initialized to H'FF by a reset and in hardware standby mode. It is not initialized in
software standby mode.
Note: In the H8S/2321 this register is reserved and must not be accessed.
Rev.6.00 Sep. 27, 2007 Page 164 of 1268
REJ09B0220-0600
Bit
Initial value :
R/W
Bit
Initial value :
R/W
Refresh Timer Counter (RTCNT)
Refresh Time Constant Register (RTCOR)
:
:
:
:
R/W
R/W
7
0
7
1
R/W
R/W
6
0
6
1
R/W
R/W
5
0
5
1
R/W
R/W
4
0
4
1
R/W
R/W
3
0
3
1
R/W
R/W
2
0
2
1
R/W
R/W
1
0
1
1
R/W
R/W
0
0
0
1
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