參數(shù)資料
型號(hào): HD4074459
廠商: Hitachi,Ltd.
英文描述: 4-bit HMCS400-Series microcomputer(4位單片微計(jì)算機(jī))
中文描述: 4位HMCS400系列微機(jī)(4位單片微計(jì)算機(jī))
文件頁數(shù): 47/120頁
文件大小: 692K
代理商: HD4074459
HD404459 Series
47
I/O Pin Type
Circuit
Pins
SI,
INT
0
,
INT
1
,
INT
2
, INT
3
,
WU
0
WU
7
,
EVNB
, EVND
Peripheral
function
pins
Input pins
V
CC
INT
0
, etc
HLT
MIS3
PDR
Input data
STOPC
STOPC
Notes: 1. In stop mode, the MCU is reset and peripheral function selection is cancelled. The
HLT
signal
becomes low, and input/output pins enter high-impedance state.
2. The
HLT
signal is 1 in watch and subactive modes.
D Port (D
0
–D
11
):
Consist of 10 input/output pins and 2 input pins addressed by one bit. D
0
–D
9
are
input/output pins, and D
10
and D
11
are input-only pins.
Pins D
0
–D
9
are set by the SED and SEDD instructions, and reset by the RED and REDD instructions.
Output data is stored in the port data register (PDR) for each pin. All pins D
0
–D
11
are tested by the TD and
TDD instructions.
The on/off statuses of the output buffers are controlled by D-port data control registers (DCD0–DCD2:
$02C–$02E) that are mapped to memory addresses (figure 30).
Pin D
11
is multiplexed with peripheral function pin
STOPC
. The peripheral function mode of this pin is
selected by bit 2 (PMRC2) of port mode register C (PMRC: $025) (figure 35).
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