HD64F3029XBL25V Renesas Electronics America, HD64F3029XBL25V Datasheet - Page 171
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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6.3.5
The H8/3029 provides a choice of two address update methods: either the same method as in the
previous H8/300H Series (address update mode 1), or a method in which address update is
restricted to external space accesses or self-refresh cycles (address update mode 2).
Figure 6.5 shows examples of address output in these two update modes.
Address Update Mode 1: Address update mode 1 is compatible with the previous H8/300H
Series. Addresses are always updated between bus cycles.
Address Update Mode 2: In address update mode 2, address updating is performed only in
external space accesses or self-refresh cycles. In this mode, the address can be retained between
an external space read cycle and an instruction fetch cycle (on-chip memory) by placing the
program in on-chip memory. Address update mode 2 is therefore useful when connecting a
device that requires address hold time with respect to the rise of the RD strobe.
Switching between address update modes 1 and 2 is performed by means of the ADRCTL bit in
ADRCR. The initial value of ADRCR is the address update mode 1 setting, providing
compatibility with the previous H8/300H Series.
Rev. 2.0, 06/04, page 142 of 980
Address update
mode 1
Address update
mode 2
RD
Address Output Method
Figure 6.5 Sample Address Output in Each Address Update Mode
memory cycle
On-chip
(Basic Bus Interface, 3-State Space)
read cycle
External
memory cycle
On-chip
read cycle
External
memory cycle
On-chip
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