HD64F3029XBL25V Renesas Electronics America, HD64F3029XBL25V Datasheet - Page 541
HD64F3029XBL25V
Manufacturer Part Number
HD64F3029XBL25V
Description
MCU 5V 512K,PB-FREE 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Hr
Datasheet
1.HD64F3029X25.pdf
(1012 pages)
Specifications of HD64F3029XBL25V
Core Processor
H8/300H
Core Size
16-Bit
Speed
25MHz
Connectivity
SCI, SmartCard
Peripherals
DMA, PWM, WDT
Number Of I /o
70
Program Memory Size
512KB (512K x 8)
Program Memory Type
FLASH
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 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
Lead free / RoHS Compliant
Eeprom Size
-
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Receive Error Flags and Transmitter Operation (Synchronous Mode Only): When a receive
error flag (ORER, PER, or FER) is set to 1 the SCI will not start transmitting, even if the TDRE
flag is cleared to 0. Be sure to clear the receive error flags to 0 when starting to transmit. Note
that clearing the RE bit to 0 does not clear the receive error flags to 0.
Receive Data Sampling Timing in Asynchronous Mode and Receive Margin: In asynchronous
mode the SCI operates on a base clock with 16 times the bit rate frequency. In receiving, the SCI
synchronizes internally with the fall of the start bit, which it samples on the base clock. Receive
data is latched at the rising edge of the eighth base clock pulse. See figure 13.21.
Internal base clock
Receive data
(RxD)
Synchronization
sampling timing
Data sampling
timing
The receive margin in asynchronous mode can therefore be expressed as shown in equation (1).
Rev. 2.0, 06/04, page 512 of 980
M =
M:
N:
D:
L:
F:
Figure 13.21 Receive Data Sampling Timing in Asynchronous Mode
Receive margin (%)
Ratio of clock frequency to bit rate (N = 16)
Clock duty cycle (L = 0 to 1.0)
Frame length (L = 9 to 12)
Absolute deviation of clock frequency
(0.5
0
Start bit
–
8 clocks
2N
1
16 clocks
)
–
7
(L
–
0.5) F
–
15 0
D
–
N
0.5
D
(1 + F)
0
. . . . . . . . (1)
7
100%
15 0
D
1
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