HD64F2145BTE20 Renesas Electronics America, HD64F2145BTE20 Datasheet - Page 633
HD64F2145BTE20
Manufacturer Part Number
HD64F2145BTE20
Description
IC H8S MCU FLASH 256K 100-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2100r
Specifications of HD64F2145BTE20
Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
I²C, IrDA, SCI, X-Bus
Peripherals
PWM, WDT
Number Of I /o
74
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
8K 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-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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19.6
19.6.1
LPC operation can be enabled or disabled using the module stop control register. The initial
setting is for LPC operation to be halted. Register access is enabled by canceling module stop
mode. For details, refer to section 26, Power-Down Modes.
19.6.2
The host interface provides buffering of asynchronous data from the host processor and slave
processor (this LSI), but an interface protocol that uses the flags in STR must be followed to avoid
data contention. For example, if the host and slave processor both try to access IDR or ODR at the
same time, the data will be corrupted. To prevent simultaneous accesses, IBF and OBF must be
used to allow access only to data for which writing has finished.
No
No
Usage Notes
Module Stop Mode Setting
Notes on Using Host Interface
Write 1 to IRQ1E1
ODR1 write
transferred?
OBF1 = 0?
All bytes
Figure 19.8 HIRQ Flowchart (Example of Channel 1)
Yes
Yes
Slave CPU
SERIRQ IRQ1 output
source clearance
SERIRQ IRQ1
Section 19 Host Interface LPC Interface (LPC)
Rev. 3.00 Mar 21, 2006 page 577 of 788
Hardware operation
Software operation
Interrupt initiation
Master CPU
ODR1 read
REJ09B0300-0300
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