D12321VF20V Renesas Electronics America, D12321VF20V Datasheet - Page 863

• Manufacturer Part Number: D12321VF20V
• Description: IC H8S/2321 MCU ROMLESS 128QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of D12321VF20V

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 86
• Program Memory Type: ROMless
• Ram Size: 4K 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: 128-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

19.20.3 PROM Mode Operation
Table 19.35 shows how the different operating modes are set when using PROM mode, and table
19.36 lists the commands used in PROM mode. Details of each mode are given below.
Memory Read Mode: Memory read mode supports byte reads.
Auto-Program Mode: Auto-program mode supports programming of 128 bytes at a time. Status
polling is used to confirm the end of auto-programming.
Auto-Erase Mode: Auto-erase mode supports automatic erasing of the entire flash memory.
Status polling is used to confirm the end of auto-erasing.
Status Read Mode: Status polling is used for auto-programming and auto-erasing, and normal
termination can be confirmed by reading the I/O
output if an error occurs.
Table 19.35 Settings for Each Operating Mode in PROM Mode
Mode
Read
Output disable
Command write
Chip disable *
Legend:
H:
L:
Hi-Z: High impedance
X:
Notes: 1. Chip disable is not a standby state; internally, it is an operation state.
High level
Low level
Don’t care
2. Ain indicates that there is also address input in auto-program mode.
3. For command writes when making a transition to auto-program or auto-erase mode,
input a high level to the FWE pin.
1
FWE
H or L
H or L
H or L *
H or L
3
CE
L
L
L
H
OE
L
H
H
X
6
signal. In status read mode, error information is
Pin Names
Rev.6.00 Sep. 27, 2007 Page 831 of 1268
WE
H
H
L
X
I/O
Data output
Hi-Z
Data input
Hi-Z
7
to I/O
REJ09B0220-0600
0
Section 19 ROM
A
Ain
X
Ain *
X
18
to A
2
0