DF2148BTE20 Renesas Electronics America, DF2148BTE20 Datasheet - Page 92
DF2148BTE20
Manufacturer Part Number
DF2148BTE20
Description
IC H8S MCU FLASH 128K 100-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2100r
Specifications of DF2148BTE20
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
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
4K 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
-
Other names
HD64F2148BTE20
HD64F2148BTE20
HD64F2148BTE20
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF2148BTE20V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 92 of 847
- Download datasheet (5Mb)
Section 2 CPU
Bit
7
6
5
4
3
2
1
0
Rev. 3.00 Mar 21, 2006 page 36 of 788
REJ09B0300-0300
Bit Name
I
UI
H
U
N
Z
V
C
Initial Value
1
Undefined
Undefined
Undefined
Undefined
Undefined
Undefined
Undefined
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
Interrupt Mask Bit
Masks interrupts when set to 1. NMI is accepted
regardless of the I bit setting. The I bit is set to 1 at the
start of an exception-handling sequence. For details, refer
to section 5, Interrupt Controller.
User Bit or Interrupt Mask Bit
Can be written to and read from by software using the
LDC, STC, ANDC, ORC, and XORC instructions.
Half-Carry Flag
When the ADD.B, ADDX.B, SUB.B, SUBX.B, CMP.B or
NEG.B instruction is executed, this flag is set to 1 if there
is a carry or borrow at bit 3, and cleared to 0 otherwise.
When the ADD.W, SUB.W, CMP.W, or NEG.W
instruction is executed, the H flag is set to 1 if there is a
carry or borrow at bit 11, and cleared to 0 otherwise.
When the ADD.L, SUB.L, CMP.L, or NEG.L instruction is
executed, the H flag is set to 1 if there is a carry or
borrow at bit 27, and cleared to 0 otherwise.
User Bit
Can be written to and read from by software using the
LDC, STC, ANDC, ORC, and XORC instructions.
Negative Flag
Stores the value of the most significant bit of data as a
sign bit.
Zero Flag
Set to 1 to indicate zero data, and cleared to 0 to indicate
non-zero data.
Overflow Flag
Set to 1 when an arithmetic overflow occurs, and cleared
to 0 otherwise.
Carry Flag
Set to 1 when a carry occurs, and cleared to 0 otherwise.
Used by
The carry flag is also used as a bit accumulator by bit
manipulation instructions.
Add instructions, to indicate a carry
Subtract instructions, to indicate a borrow
Shift and rotate instructions, to indicate a carry
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