DF71251AD50FPV Renesas Electronics America, DF71251AD50FPV Datasheet - Page 618
DF71251AD50FPV
Manufacturer Part Number
DF71251AD50FPV
Description
MCU RISC FLASH 32K 8K 64LQFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH Tinyr
Datasheet
1.DF71243N50FPV.pdf
(794 pages)
Specifications of DF71251AD50FPV
Core Processor
SH-2
Core Size
32-Bit
Speed
50MHz
Connectivity
SCI
Peripherals
POR, PWM, WDT
Number Of I /o
37
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
64-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF71251AD50FPV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 618 of 794
- Download datasheet (5Mb)
(1) Download Control
Rev. 5.00 Mar. 06, 2009 Page 598 of 770
REJ09B0243-0500
Bit
7 to 3
2
The on-chip program is automatically downloaded by setting the SCO bit to 1. The on-chip
RAM area to be downloaded is the area as much as 3 Kbytes starting from the start address
specified by FTDAR. For the address map of the on-chip RAM, see figure 17.10.
The download control is set by using the programming/erasing interface registers. The return
value is given by the DPFR parameter.
(a) Download pass/fail result parameter (DPFR: one byte of start address of on-chip RAM
specified by FTDAR)
This parameter indicates the return value of the download result. The value of this
parameter can be used to determine if downloading is executed or not. Since the
confirmation whether the SCO bit is set to 1 is difficult, the certain determination must be
performed by setting one byte of the start address of the on-chip RAM area specified by
FTDAR to a value other than the return value of download (for example, H'FF) before the
download start (before setting the SCO bit to 1). For the checking method of download
results, see section 17.5.2 (2), Programming Procedure in User Program Mode.
Bit Name
⎯
SS
Initial value:
Initial
Value
Undefined R/W
Undefined R/W
R/W:
Bit:
R/W
7
-
-
R/W
R/W
6
-
-
Description
Unused
Return 0.
Source Select Error Detect
The on-chip program which can be downloaded can be
specified as only one type. When more than two types
of the program are selected, the program is not
selected, or the program is selected without mapping,
an error occurs.
0: Download program can be selected normally
1: Download error occurs (Multi-selection or program
R/W
5
-
-
which is not mapped is selected)
R/W
4
-
-
R/W
3
-
-
R/W
SS
2
-
R/W
FK
1
-
R/W
SF
0
-
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