HD64F3048F16 Renesas Electronics America, HD64F3048F16 Datasheet - Page 539
![IC H8 MCU FLASH 128K 100QFP](/photos/12/21/122166/qfp100-g1_pkg_sml.jpg)
HD64F3048F16
Manufacturer Part Number
HD64F3048F16
Description
IC H8 MCU FLASH 128K 100QFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Hr
Specifications of HD64F3048F16
Core Processor
H8/300H
Core Size
16-Bit
Speed
8MHz
Connectivity
SCI, SmartCard
Peripherals
DMA, PWM, WDT
Number Of I /o
70
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-QFP
Package
100PQFP
Family Name
H8
Maximum Speed
16 MHz
Operating Supply Voltage
5 V
Data Bus Width
16|32 Bit
Number Of Programmable I/os
70
Interface Type
SCI
On-chip Adc
8-chx10-bit
On-chip Dac
2-chx8-bit
Number Of Timers
5
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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The receive margin in asynchronous mode can therefore be expressed as in equation (1).
From equation (1), if F = 0 and D = 0.5 the receive margin is 46.875%, as given by equation (2).
This is a theoretical value. A reasonable margin to allow in system designs is 20% to 30%.
Restrictions on Usage of DMAC
To have the DMAC read RDR, be sure to select the SCI receive-data-full interrupt (RXI) as the
activation source with bits DTS2 to DTS0 in DTCR.
Internal
base clock
Receive data
(RxD)
Synchronization
sampling timing
Data sampling
timing
M = (0.5
M: Receive margin (%)
N: Ratio of clock frequency to bit rate (N = 16)
D: Clock duty cycle (D = 0 to 1.0)
L:
F:
D = 0.5, F = 0
M = {0.5 – 1/(2
= 46.875% ............................................................................................. (2)
Figure 13.21 Receive Data Sampling Timing in Asynchronous Mode
Frame length (L = 9 to 12)
Absolute deviation of clock frequency
2N
1
0
)
16)}
8 clocks
Start bit
(L
0.5) F
100%
16 clocks
7
D
N
0.5
(1 + F)
15 0
Section 13 Serial Communication Interface
Rev. 3.00 Sep 27, 2006 page 511 of 872
100% ................... (1)
D
0
7
REJ09B0325-0300
15 0
D
1
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