DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 63

• Manufacturer Part Number: DF2437FV
• Description: IC H8S/2437 MCU FLASH 128QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2400r

Specifications of DF2437FV

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 85
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 128-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

2.4
The H8S/2600 CPU has the internal registers shown in figure 2.6. There are two types of registers:
general registers and control registers. Control registers are a 24-bit program counter (PC), an 8-bit
extended register (EXR), an 8-bit condition code register (CCR), and a 64-bit multiply-accumulate
register (MAC).
Note: * UI cannot be used as an interrupt mask bit in this LSI.
General Registers (Rn) and Extended Registers (En)
Control Registers (CR)
[Legend]
Registers
ER0
ER1
ER2
ER3
ER4
ER5
ER6
ER7 (SP)
SP:
PC:
EXR:
T:
I2 to I0:
CCR:
I:
UI:
MAC
63
31
15
Stack pointer
Program counter
Extended register
Trace bit
Interrupt mask bits
Condition-code register
Interrupt mask bit
User bit or interrupt mask bit*
Figure 2.6 CPU Registers
E0
E1
E2
E3
E4
E5
E6
E7
23
Sign extension
MACL
0 7
H:
U:
N:
Z:
V:
C:
MAC:
R0H
R1H
R2H
R3H
R4H
R5H
R6H
R7H
PC
Rev.2.00 May. 28, 2009 Page 23 of 732
Half-carry flag
User bit
Negative flag
Zero flag
Overflow flag
Carry flag
Multiply-accumulate register
EXR
CCR
0 7
T
7 6 5 4 3 2 1 0
7 6 5 4 3 2 1 0
I UI H U N Z V C
41
- - - -
MACH
R0L
R1L
R2L
R3L
R4L
R5L
R6L
R7L
REJ09B0059-0200
I2 I1 I0
32
0
0
0