DF61654N50FTV Renesas Electronics America, DF61654N50FTV Datasheet - Page 274
![IC H8SX/1654 MCU FLASH 120TQFP](/photos/12/21/122199/df61654n50ftv_sml.jpg)
DF61654N50FTV
Manufacturer Part Number
DF61654N50FTV
Description
IC H8SX/1654 MCU FLASH 120TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8SX/1600r
Datasheet
1.DF61653N50FTV.pdf
(1020 pages)
Specifications of DF61654N50FTV
Core Processor
H8SX
Core Size
32-Bit
Speed
50MHz
Connectivity
I²C, IrDA, SCI, SmartCard, USB
Peripherals
DMA, PWM, WDT
Number Of I /o
75
Program Memory Size
512KB (512K x 8)
Program Memory Type
FLASH
Ram Size
40K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
120-TQFP, 120-VQFP
For Use With
HS0005KCU11H - EMULATOR E10A-USB H8S(X),SH2(A)3DK1657 - DEV EVAL KIT FOR H8SX/1657
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF61654N50FTV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 274 of 1020
- Download datasheet (6Mb)
Section 6 Bus Controller (BSC)
6.14
This LSI has bus arbiters that arbitrate bus mastership operations (bus arbitration). This LSI
incorporates internal access and external access bus arbiters that can be used and controlled
independently. The internal bus arbiter handles the CPU, DTC, and DMAC accesses. The external
bus arbiter handles the external access by the CPU, DTC, and DMAC and external bus release
request (external bus master).
The bus arbiters determine priorities at the prescribed timing, and permit use of the bus by means
of the bus request acknowledge signal.
6.14.1
The bus arbiter detects the bus masters' bus request signals, and if the bus is requested, sends a bus
request acknowledge signal to the bus master. If there are bus requests from more than one bus
master, the bus request acknowledge signal is sent to the one with the highest priority. When a bus
master receives the bus request acknowledge signal, it takes possession of the bus until that signal
is canceled.
The priority of the internal bus arbitration:
The priority of the external bus arbitration:
If the DMAC or DTC accesses continue, the CPU can be given priority over the DMAC or DTC
to execute the bus cycles alternatively between them by setting the IBCCS bit in BCR2. In this
case, the priority between the DMAC and DTC does not change.
An internal bus access by the CPU, DTC, or DMAC and an external bus access by an external bus
release request can be executed in parallel.
Rev.1.00 Sep. 08, 2005 Page 224 of 966
REJ09B0219-0100
(High) DMAC > DTC > CPU (Low)
(High) External bus release request > External access by the CPU, DTC, and DMAC (Low)
Bus Arbitration
Operation
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