R5F21256SNFP#U0 Renesas Electronics America, R5F21256SNFP#U0 Datasheet - Page 336
R5F21256SNFP#U0
Manufacturer Part Number
R5F21256SNFP#U0
Description
IC R8C MCU FLASH 32K 52LQFP
Manufacturer
Renesas Electronics America
Series
R8C/2x/25r
Datasheets
1.R5F211A2SPU0.pdf
(300 pages)
2.R5F21246SDFPU0.pdf
(61 pages)
3.R5F21246SDFPU0.pdf
(527 pages)
Specifications of R5F21256SNFP#U0
Core Processor
R8C
Core Size
16/32-Bit
Speed
20MHz
Connectivity
I²C, LIN, SIO, SSU, UART/USART
Peripherals
POR, Voltage Detect, WDT
Number Of I /o
41
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
2.2 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 85°C
Package / Case
52-LQFP
For Use With
R0K521256S000BE - KIT EVAL STARTER FOR R8C/25
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
R5F21256SNFP#U0R5F21256SNFP#ES
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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R8C/24 Group, R8C/25 Group
Rev.3.00
REJ09B0244-0300
Figure 16.11
16.2.2
• SSUMS = 0
• SSUMS = 1 (4-wire bus communication mode),
16.2.2.1
(clock synchronous communication mode)
BIDE = 0 (standard mode), and MSS = 0 (operates
as slave device)
The SSTRSR register is a shift register for transmitting and receiving serial data.
When transmit data is transferred from the SSTDR register to the SSTRSR register and the MLS bit in the
SSMR register is set to 0 (MSB-first), the bit 0 in the SSTDR register is transferred to bit 0 in the SSTRSR
register. When the MLS bit is set to 1 (LSB-first), bit 7 in the SSTDR register is transferred to bit 0 in the
SSTRSR register.
The connection between the data I/O pins and SSTRSR register (SS shift register) changes according to a
combination of the MSS bit in the SSCRH register and the SSUMS bit in the SSMR2 register. The connection
also changes according to the BIDE bit in the SSMR2 register.
Figure 16.11 shows the Association between Data I/O Pins and SSTRSR Register.
SSTRSR register
SSTRSR register
Feb 29, 2008
SS Shift Register (SSTRSR)
Association between Data I/O Pins and SS Shift Register
Association between Data I/O Pins and SSTRSR Register
Page 317 of 485
SSO
SSI
SSO
SSI
• SSUMS = 1 (4-wire bus communication mode),
• SSUMS = 1 (4-wire bus communication mode) and
BIDE = 0 (standard mode), and MSS = 1 (operates as
master device)
BIDE = 1 (bidirectional mode)
SSTRSR register
SSTRSR register
16. Clock Synchronous Serial Interface
SSO
SSI
SSO
SSI
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