DF2148ATE20 Renesas Electronics America, DF2148ATE20 Datasheet - Page 741
![IC H8S MCU FLASH 128K 100-QFP](/photos/28/61/286108/100-tqfp_sml.jpg)
DF2148ATE20
Manufacturer Part Number
DF2148ATE20
Description
IC H8S MCU FLASH 128K 100-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2100r
Specifications of DF2148ATE20
Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
Host Interface, I²C, IrDA, SCI
Peripherals
POR, PWM, WDT
Number Of I /o
74
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Other names
HD64F2148ATE20
HD64F2148ATE20
HD64F2148ATE20
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF2148ATE20IV
Manufacturer:
Renesas Electronics America
Quantity:
135
Company:
Part Number:
DF2148ATE20IV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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23.5
23.5.1
FLMCR1 is an 8-bit register used for flash memory operating mode control. Program-verify mode
or erase-verify mode is entered by setting SWE to 1. Program mode is entered by setting SWE to
1, then setting the PSU bit in FLMCR2, and finally setting the P bit. Erase mode is entered by
setting SWE to 1, then setting the ESU bit in FLMCR2, and finally setting the E bit. FLMCR1 is
initialized to H'80 by a reset, and in hardware standby mode, software standby mode, subactive
mode, subsleep mode, and watch mode. When on-chip flash memory is disabled, a read will return
H'00, and writes are invalid.
Writes to the EV and PV bits in FLMCR1 are enabled only when SWE=1; writes to the E bit only
when SWE = 1, and ESU = 1; and writes to the P bit only when SWE = 1, and PSU = 1.
Bit 7—Flash Write Enable (FWE): Sets hardware protection against flash memory
programming/erasing. This bit cannot be modified and is always read as 1.
Bit 6—Software Write Enable (SWE): Enables or disables flash memory programming. SWE
should be set before setting bits ESU, PSU, EV, PV, E, P, and EB9 to EB0, and should not be
cleared at the same time as these bits.
Bit 5 and 4—Reserved: These bits cannot be modified and are always read as 0.
Bit 6
SWE
0
1
Bit
Initial value
Read/Write
Section 23 ROM
Register Descriptions
Flash Memory Control Register 1 (FLMCR1)
Description
Writes disabled
Writes enabled
FWE
R
7
1
(H8S/2148 F-ZTAT A-Mask Version, H8S/2147 F-ZTAT A-Mask Version, H8S/2144 F-ZTAT A-Mask Version)
SWE
R/W
6
0
—
—
5
0
—
—
4
0
Rev. 4.00 Sep 27, 2006 page 695 of 1130
R/W
EV
3
0
R/W
PV
2
0
R/W
REJ09B0327-0400
E
1
0
(Initial value)
R/W
P
0
0
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