D12312SVTE25 Renesas Electronics America, D12312SVTE25 Datasheet - Page 202
D12312SVTE25
Manufacturer Part Number
D12312SVTE25
Description
MCU 3V 0K 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2300r
Datasheet
1.D12312SVTE25V.pdf
(1146 pages)
Specifications of D12312SVTE25
Core Processor
H8S/2000
Core Size
16-Bit
Speed
25MHz
Connectivity
SCI, SmartCard
Peripherals
POR, PWM, WDT
Number Of I /o
70
Program Memory Type
ROMless
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
2.7 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
Contains lead / RoHS non-compliant
Eeprom Size
-
Program Memory Size
-
Other names
HD6412312SVTE25
HD6412312SVTE25
HD6412312SVTE25
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
D12312SVTE25V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 202 of 1146
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Section 6 Bus Controller
6.4.5
Wait Control
When accessing external space, the H8S/2319 Group can extend the bus cycle by inserting one or
more wait states (T
). There are two ways of inserting wait states: program wait insertion and pin
w
wait insertion using the WAIT pin.
Program Wait Insertion: From 0 to 3 wait states can be inserted automatically between the T
2
state and T
state on an individual area basis in 3-state access space, according to the settings of
3
WCRH and WCRL.
Pin Wait Insertion: Setting the WAITE bit in BCRL to 1 enables wait insertion by means of the
WAIT pin. When external space is accessed in this state, program wait insertion is first carried out
according to the settings in WCRH and WCRL. Then, if the WAIT pin is low at the falling edge of
state is inserted. If the WAIT pin is held low, T
φ in the last T
or T
state, a T
states are
2
w
w
w
inserted until it goes high.
This is useful when inserting four or more T
states, or when changing the number of T
states for
w
w
different external devices.
The WAITE bit setting applies to all areas.
Rev.7.00 Feb. 14, 2007 page 168 of 1108
REJ09B0089-0700
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