ST10F296 datasheet(141/346 Pages) STMICROELECTRONICS

Nome de Peças	ST10F296

Descrição Electrónicos	High performance 16-bit CPU with DSP functions

PDF	346 Pages

Scroll/Zoom	100%

Fabricante Electrônico	STMICROELECTRONICS [STMicroelectronics]

Página de início	http://www.st.com

Logo

141 / 346 page

Obsolete

Product(s)

- Obsolete

Product(s)

ST10F296E

Parallel ports

141/346

Figure 39.

Block diagram of a Port 3 pin

Pin P3.12 (BHE/WRH) is another pin with an alternate output function. However, its

structure is slightly different to the Port 3 pin (see Figure 40). After reset, the BHE or WRH

function must be used. In either case, port latches cannot be programmed before. Thus, the

appropriate alternate function is selected automatically. If BHE/WRH is not used in the

system, this pin can be used for general purpose I/O by disabling the alternate function

(BYTDIS = 1/WRCFG = 0).

Note:

Enabling the BHE or WRH function automatically enables the P3.12 output driver. Setting bit

DP3.12 = 1 is not required. During bus hold, pin P3.12 is switched back to its standard

function and is then controlled by DP3.12 and P3.12. In this case, keep DP3.12 = 0 to

ensure floating in hold mode.

Open-drain

latch

Write ODP3.y

Read ODP3.y

Direction

latch

Write DP3.y

Read DP3.y

MUX

Alternate data input

Input

latch

Clock

P3.y

Output

buffer

y = 13, 11 to 0

Port output

latch

Read P3.y

Write P3.y

Alternate

data input

Port data

output

Obsolete

Product(s)

- Obsolete

Product(s)

ST10F296 Folha de dados(PDF) 141 Page - STMicroelectronics

ST10F296 Folha de dados(HTML) 141 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Folha de dados Download

Ligação URL